In France all unions negotiate joinly for all employees. It is strictly forbidden for an employer to have different treatment of an employee depending on whethe

In France all unions negotiate joinly for all employees. It is strictly forbidden for an employer to have different treatment of an employee depending on whether they are members of a union. Membership is not public anyway. About 10% of the workforce is unionized and only a few percent of the unions funds come from the members. The rest is from companies (mandatory fund), the region, ...