You know depends on the job. For a coder no, I don't know, maybe not. Still would appreciate many of the things a union could do for me, but it doesn't line up that neatly.
Whereas for a carpenter definitely. Or working in construction, I'm going to be part of a union somewhere, if there isn't a union I'll go to where there is one, if it's small and weak make it larger and stronger. And work like fuck while inside it, I love doing that, doing perfect work and sweet alienation while working. It's just too dangerous without a union, one of the big wins a union gives you is workplace safety. That's not a fucking joke, bosses do try to push you into bad working conditions for marginal amounts of money, just scream at you to work faster, that's just wrong. I could have lost fingers working under the Chilean minimum wage. I could have damaged my spine working a bottling station alone with three people on the other side, rotating my back too much too fast (like do I have to be a fucking doctor to know that that's harmful, if it hurts the wrong way I have to deflect that work). And plus, the wages are much better with unions, you get better raises, and you can actually--get this--bring up win-win situations for the company without getting cheated out of your upside completely.
And I would love to pay Union dues. They're such little money, like nothing, like 1% or some meaningless shit? Even if they were 8%. The money you spend that you get nothing back from directly is the money that really gives you dignity. Like taxes, I love paying taxes too. Pay the fuck out of those taxes. Knock out those taxes.