The secret sauce of a union is, they bargain over wages & working conditions for you. Especially the "wages" part. Non-union companies are acting perfectly leg

The secret sauce of a union is, they bargain over wages & working conditions for you. Especially the "wages" part. Non-union companies are acting perfectly legally if they create workers' councils to discuss working conditions. That is not an "employer union." If they submitted a new salary schedule to the council -- that would be an employer union. Telling employees that these discussions would not be permitted with a union is similarly legal.