I gotta be honest, this sounds more like you want to hate the union and are just grasping for any straw you can reach.
On whether a union forces you to be a progressive liberal, no. Do unions prefer Democrats, yes. Why? Since they are the one that protect union rights.
Are they brainwashing our kids, again no. I grew up in a union school system and I honestly was not once taught anything about unions in my time. Curriculum is set by the state not teachers normally. Your over thinking this.
I've only formed my opinion after working in a non union position and a union position. Companies take advantage of there power with no union present.
I appreciate your honesty. I haven't taken time to dissect your/other's opinions yet from this thread. I am starting off with the instinct that they are bad so I am trying to explain where my instinct is rooted. Incase anyone wants to discuss those ideas buried in my head.
So you agree that if all school employees are more or less forced to be pro union that means nearly all school staff is going to be a progressive liberal? But you disagree that any of that has a chance of rubbing off on impressionable minds?
I didn't say brainwashing, setting curriculum, or teaching unionisms. But I was rather vague. I meant, no one is teaching liberty as a general philosophy outside of the curriculum. Outside of the curriculum, they are being influenced to hate the right to own guns.
I see that as a valid concern. Worth discussing..