Unions became a thing in the USA after the fallout from the Battle of Blair Mountain.

Sadly most West Virginians don’t know their own history and are rabid boot lickers.

My point is, before unions, if you had a problem with your boss, you would just shoot the boss. That was too much for the cappies, and they allowed unionism as a pressure release valve to avoid themselves getting shot. Now if people are unhappy they can hold signs in 100 degree weather and make noise. Much better than getting shot.