The problem isn't unionization, the problem is the unions as the "actually exist" in the present day which are:

• Hierarchical

• Often unrealistic, demanding things which which cause management to simply cut costs in other areas detrimental to workers generally

• Filled with cushy positions. The president of the Teamsters makes over $300k. This is related to the hierarchical aspect.

• Sometimes non-responsive to rank-and-file. I know because I've been in this position. My grievance: I wasn't receiving any paychecks. One would think that ought to matter.

Unions can take forms in which membership makes sense. They can be less hierarchical and more participatory.

There has been a long campaign of discrediting unionization in general because of documented problems with modern unions. This has worked well.

I do think unions make sense - they are voluntary associations used to multiply power. I have always found it odd, when you find someone who is very anti-union, how little time they'll spend talking about corporate lobbying, collusion, cartels, and anti-trust.

I come from a libertarian (American sense) background. I am not ideological now but even in my most libertarian days, it was puzzling watching a lot of libertarians who would talk about things like "restrictive covenants" and the like be suddenly all concerned when workers banded together voluntarily to get what they wanted.