Unlike American workers, French ones who perceive they're not getting a fair deal, don't sue. They hold bosses hostage.
The third recent incident of that, reports David Jolly at THE NEW YORK TIMES, occurred at the Caterpillar plant in the French Alps. The dispute was over severance packages. Worldwide Caterpillar had announced 22,000 layoffs. At that particular plant, about 733 workers will be cut.
This sort of performance art can be played out in Europe which is employee-protective. In the more capitalistic U.S. we go the way of Ledbetter legislation and sue the bosses.