I take it that’s a no for you.
I’ve only ever had one union job (at a young age) and that told me everything I need to know about unions.
Ultimately if you’re not getting paid what you’re worth, that’s on you. Or you’re wrong about what you’re worth.
I guess our difference is that I’d rather myself to blame for poor negotiating than some union boss, making twice what I make, telling me what I’ll be getting with no ability to negotiate.