Earlier quoted context omitted.
HN is not the best platform to from anti-capitalism sentiments. There's a lot of privilege here and it makes people pretty blind to how awful capitalism is (and the things it creates, like anti-union sentiment).
Unions aren't anti-capitalist, they explicitly work within a capitalist framework to ensure better pay and working conditions for their workers. Unions deal in money and don't seek to change that, unions recognize and don't challenge ownership of the business. What about them makes them anti-capitalist, except that they seek to shift the balance of "who, of all the people working on a business, gets paid what for the…
I knew someone through a friend that was kicked out of the carpenters union for not being good enough. Their accreditation can be quite strict.