Even if that were true (it's mostly just anti union propaganda.. and I'm not even sure this isn't propaganda bot I'm replying to. )

Until you unionize. It the equivalent of saying "I don't care enough about anyone else but me to bother. Even if it does hurt me in the long run."

Unions aren't a service you pay for like insurance. It's a thing you do with other people. Together. To protect one another because we're strong together.

Anti union propaganda focuses on the things it can attack, and distracts you from all the benefits.