Well I've never been part of a union, so I don't have much to say on it. I think the rest of the country is very different when it comes to this than the midwest and northeast.
In Florida, the union reps creeped me out and it basically sounded like you give them some money every paycheck and if something messed up happens to you, you'll get better lawyers than you could get for yourself.
No thanks, I don't plan on doing anything to get myself in trouble. And if I do, I trust the people who hired me and know me to assume I didn't do anything wrong, at least not on purpose. So no, I didn't give them any of my money.
In AZ, it's a 'right to work' state, which seems to cut the balls off of any unions here. But incredibly, unions still exist. It all just seems like a big insurance scam to me.
If something ever goes sideways on me, then it'll because the people that hired me and know me don't want me around anymore, and that's not a place I want to stay.