I think the point here is more that there is of course major benefits to being in a union...just not for those who pay for them.
like tax payers in many cases.
Unions are an antiquated aspect of civilization from a time before there was sufficient human rights advocacy.
They are outdated in todays competetive market place and a HUGE reason why the US cant keep their massive debt in check.
That being said, given an opportunity, I would love to be part of a union.
It's stressfull being employed purely on skill and work ethic in a competitive market place.
I cant even imagine what "seniority" feels like....lol