"Free unions..."
Name one.
Exactly the only places unions survive are in the choke points of an economy.. aka port workers, air traffic control, electricity workers etc.. Where they can hold a nation hostage..
And in the government. Something like 7 million of America's 12 million union workers... work in the government. There they can extort whatever they want, because there are no market forces acting. The state simply raises taxes whether people like it or not.