People hold flags from Spain's CGT labour union as they protest outside a Zara clothing store, an Inditex brand, in Madrid, Spain, February 25, 2021. REUTERS/Susana Vera

People hold flags from Spain's CGT labour union as they protest outside a Zara clothing store, an Inditex brand, in Madrid, Spain, February 25, 2021. The banner reads: "Inditex precarious". REUTERS/Susana Vera

People hold flags from Spain's CGT labour union as they protest outside a Zara clothing store, an Inditex brand, in Madrid, Spain, February 25, 2021. REUTERS/Susana Vera

French CGT labour union General Secretary Philippe Martinez, wearing a protective face mask with the slogan "Culture in danger", attends a demonstration in Paris as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Sarah Meyssonnier

French CGT labour union General Secretary Philippe Martinez, wearing a protective face mask with the slogan "Culture in danger", attends a demonstration in Paris as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Sarah Meyssonnier

CGT Union General secretary Philippe Martinez, wearing a protective face mask with the slogan "Culture in danger", attends a demonstration in Paris as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Sarah Meyssonnier

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration in Paris as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Sarah Meyssonnier

French CGT labour union members and workers on strike attend a demonstration in Nice as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Eric Gaillard

A protestor wearing a yellow vest speaks through a megaphone next to a COVID-19 rapid test center tent during a demonstration by French CGT labour union members in Nice as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Eric Gaillard

A protestor wearing a yellow vest speaks through a megaphone next to a COVID-19 rapid test center tent during a demonstration by French CGT labour union members in Nice as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Eric Gaillard

A protestor wearing a yellow vest speaks through a megaphone next to a COVID-19 rapid test center tent during a demonstration by French CGT labour union members in Nice as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Eric Gaillard

A protestor wearing a yellow vest walks with his bike during a demonstration by French CGT labour union members in Nice as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Eric Gaillard

French CGT labour union members attend a demonstration during a national day of strikes and protests against layoffs and government's economic and social policies during the coronavirus disease (COVID-19) outbreak in Paris, France, February 4, 2021. REUTERS/Christian Hartmann

French CGT labour union members and undocumented workers attend a demonstration in Nice during a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. The slogan reads "United for the regularisation of all undocumented workers". REUTERS/Eric Gaillard

French CGT labour union members attend a demonstration in Nice during a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Eric Gaillard

French CGT labour union members and workers attend a demonstration in Nice during a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Eric Gaillard

French CGT labour union members, wearing protective face masks, attend a demonstration during a national day of strikes and protests against layoffs and government's economic and social policies during the coronavirus disease (COVID-19) outbreak in Paris, France, February 4, 2021. REUTERS/Christian Hartmann

French CGT labour union members and workers attend a demonstration in Nantes as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. REUTERS/Stephane Mahe

Sanofi's workers and CGT labour union members attend a protest against job cuts outside the Sanofi headquarters in Paris as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, France, February 4, 2021. The slogan reads slogan "Amid the pandemic, Sanofi is laying off". REUTERS/Benoit Tessier

Sanofi's workers and CGT labour union members attend a protest against job cuts outside the Sanofi headquarters in Paris as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, France, February 4, 2021. REUTERS/Benoit Tessier

Sanofi's workers and CGT labour union members attend a protest against job cuts outside the Sanofi headquarters in Paris as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, France, February 4, 2021. REUTERS/Benoit Tessier

Sanofi's workers and CGT labour union members attend a protest against job cuts outside the Sanofi headquarters in Paris as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, France, February 4, 2021. REUTERS/Benoit Tessier

Sanofi's workers and CGT labour union members attend a protest against job cuts outside the Sanofi headquarters in Paris as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, France, February 4, 2021. REUTERS/Benoit Tessier

French CGT labour union members and workers attend a demonstration in Nantes as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. The slogan reads "Unemployment or burn-out. Let's work less, let's work better, let's all work !". REUTERS/Stephane Mahe

French CGT labour union members and workers attend a demonstration in Nantes as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. The slogan reads "For our jobs, for the planet, we want social and environmental clauses". REUTERS/Stephane Mahe

French CGT labour union members and workers attend a demonstration in Nantes as part of a national day of strikes and protests against layoffs and government's economic and social policies amid the coronavirus disease (COVID-19) outbreak in France, February 4, 2021. The slogan reads "For our jobs, for the planet, we want social and environmental clauses". REUTERS/Stephane Mahe

French health workers attend a demonstration, called by the CGT union, urging the French government to provide more means and better working conditions to hospitals workers in Nantes amid?the coronavirus disease (COVID-19) outbreak in France, January 21, 2021. REUTERS/Stephane Mahe

French health workers attend a demonstration, called by the CGT union, urging the French government to provide more means and better working conditions to hospitals workers in Nantes amid?the coronavirus disease (COVID-19) outbreak in France, January 21, 2021. REUTERS/Stephane Mahe

French Prime Minister Jean Castex and Mayor of Lille Martine Aubry (R) speak with members of the CGT trade union at Centre Hospitalier Universitaire in Lille, France October 16, 2020. Denis Charlet/Pool via REUTERS

French Prime Minister Jean Castex and Mayor of Lille Martine Aubry (R) speak with members of the CGT trade union at Centre Hospitalier Universitaire in Lille, France October 16, 2020. Denis Charlet/Pool via REUTERS

French Prime Minister Jean Castex and Mayor of Lille Martine Aubry (R) speak with members of the CGT trade union at Centre Hospitalier Universitaire in Lille, France October 16, 2020. Denis Charlet/Pool via REUTERS

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration with French health workers in Nice as part of a nationwide day of actions to urge the government to increase staff as hospitals fill once again with COVID-19 patients, France, October 15, 2020. REUTERS/Eric Gaillard

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration with French health workers in Nice as part of a nationwide day of actions to urge the government to increase staff as hospitals fill once again with COVID-19 patients, France, October 15, 2020. REUTERS/Eric Gaillard

French health workers and CGT union members gather attend a demonstration in Nice as part of a nationwide day of actions to urge the government to increase staff as hospitals fill once again with COVID-19 patients, France, October 15, 2020. The slogan reads "We need urgently beds and jobs". REUTERS/Eric Gaillard

French health workers and CGT union members gather attend a demonstration in Nice as part of a nationwide day of actions to urge the government to increase staff as hospitals fill once again with COVID-19 patients, France, October 15, 2020. The slogan reads "We need urgently beds and jobs". REUTERS/Eric Gaillard

French health workers and CGT union members gather attend a demonstration in Nice as part of a nationwide day of actions to urge the government to increase staff as hospitals fill once again with COVID-19 patients, France, October 15, 2020. REUTERS/Eric Gaillard

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration with French health workers in Nice as part of a nationwide day of actions to urge the government to increase staff as hospitals fill once again with COVID-19 patients, France, October 15, 2020. REUTERS/Eric Gaillard TPX IMAGES OF THE DAY

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration with French health workers in Nice as part of a nationwide day of actions to urge the government to increase staff as hospitals fill once again with COVID-19 patients, France, October 15, 2020. REUTERS/Eric Gaillard

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration with French health workers in Nice as part of a nationwide day of actions to urge the government to increase staff as hospitals fill once again with COVID-19 patients, France, October 15, 2020. REUTERS/Eric Gaillard

Auchan employees and CGT labour union members, wearing protective face masks, demonstrate against planned job cuts in front of Auchan headquarters in Croix, France, October 8, 2020. REUTERS/Pascal Rossignol

Auchan employees and CGT labour union members, wearing protective face masks, demonstrate against planned job cuts in front of Auchan headquarters in Croix, France, October 8, 2020. REUTERS/Pascal Rossignol

Auchan employees and CGT labour union members, wearing protective face masks, demonstrate against planned job cuts in front of Auchan headquarters in Croix, France, October 8, 2020. REUTERS/Pascal Rossignol

Auchan employees and CGT labour union members, wearing protective face masks, demonstrate against planned job cuts in front of Auchan headquarters in Croix, France, October 8, 2020. REUTERS/Pascal Rossignol

Auchan employees and CGT labour union members, wearing protective face masks, demonstrate against planned job cuts in front of Auchan headquarters in Croix, France, October 8, 2020. REUTERS/Pascal Rossignol

Auchan employees and CGT labour union members, wearing protective face masks, demonstrate against planned job cuts in front of Auchan headquarters in Croix, France, October 8, 2020. REUTERS/Pascal Rossignol

Auchan employees and CGT labour union members, wearing protective face masks, demonstrate against planned job cuts in front of Auchan headquarters in Croix, France, October 8, 2020. REUTERS/Pascal Rossignol

Auchan employees and CGT labour union members demonstrate against planned job cuts in front of Auchan headquarters in Croix, France, October 8, 2020. REUTERS/Pascal Rossignol

A policeman wearing a protective face mask stands near a logo of Auchan as employees and CGT labour union members demonstrate against planned job cuts in front of Auchan headquarters in Croix, France, October 8, 2020. REUTERS/Pascal Rossignol

French Labour Minister Elisabeth Borne and Agnes Pannier-Runacher, French deputy Minister for Industry, wearing protective face masks, talk with CGT labour union representatives before a meeting at the Bridgestone's tyre plant in Bethune, France, September 21, 2020. REUTERS/Pascal Rossignol

Demonstrators, wearing protective face masks, hold CGT labour union flags during a demonstration against job cuts and for salary increases during the economic crisis and the coronavirus disease (COVID-19) outbreak in Paris, France, September 17, 2020. REUTERS/Gonzalo Fuentes

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration against job cuts and for salary increases during the economic crisis and the coronavirus disease (COVID-19) outbreak in Paris, France, September 17, 2020. REUTERS/Gonzalo Fuentes

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration against job cuts and for salary increases during the economic crisis and the coronavirus disease (COVID-19) outbreak in Paris, France, September 17, 2020. REUTERS/Gonzalo Fuentes

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration against job cuts and for salary increases during the economic crisis and the coronavirus disease (COVID-19) outbreak in Paris, France, September 17, 2020. REUTERS/Gonzalo Fuentes

A demonstrator, wearing a Guy Fawkes mask, holds a French national flags during a demonstration against job cuts and for salary increases during the economic crisis and the coronavirus disease (COVID-19) outbreak in Paris, France, September 17, 2020. REUTERS/Gonzalo Fuentes

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration against job cuts and for salary increases during the economic crisis and the coronavirus disease (COVID-19) outbreak in Paris, France, September 17, 2020. REUTERS/Gonzalo Fuentes

CGT Union General secretary Philippe Martinez, wearing a protective face mask, attends a demonstration against job cuts and for salary increases during the economic crisis and the coronavirus disease (COVID-19) outbreak in Paris, France, September 17, 2020. REUTERS/Gonzalo Fuentes

CGT Union General secretary Philippe Martinez attends a demonstration against job cuts and for salary increases during the economic crisis and the coronavirus disease (COVID-19) outbreak in Paris, France, September 17, 2020. REUTERS/Gonzalo Fuentes

A CGT labour union member, wearing a protective face mask, holds a red flare during a protest with workers in front of the Bridgestone's tyre plant in Bethune, that Japan's Bridgestone plans to shut, France, September 17, 2020. REUTERS/Pascal Rossignol

A CGT labour union member, wearing a protective face mask, holds a red flare during a protest with workers in front of the Bridgestone's tyre plant in Bethune, that Japan's Bridgestone plans to shut, France, September 17, 2020. REUTERS/Pascal Rossignol

A CGT labour union member, wearing protective face masks, holds a red flare during a protest with workers in front of the Bridgestone's tyre plant in Bethune, that Japan's Bridgestone plans to shut, France, September 17, 2020. REUTERS/Pascal Rossignol