They definitely wouldn’t. But if push came to a shove, I wonder if they’d really be able to stop them? I’m not really clear on the finer legal points. But I know that for the American Civil War, the south all left the federal government (which presumably would have made it easier to pass any bills regarding the south) and they also basically forced armed conflict (both by attacking first and by seizing federal bases).
I’m not sure if a single state leaving would have the same effect, especially with how divided American politicians are. I don’t fully understand if anything actually needs to be voted on (I do know that the American Civil War didn’t formally declare war), but if anything had to be, it’s hard to picture even a single GOPer doing anything (nor enough Democrats to pass anything – never mind that in the Senate, the fillibuster means that if the GOP refuses to vote, that’s the end of things).
So it’s a pretty big worry, in my mind. With all the shit states like Florida have done, I wouldn’t put it past them to try and secede. And no matter what, there’s no way that would end well. Either things will get a lot worse for any Floridans that aren’t cis, straight, and white, or there’ll be a war that costs a lot of lives. It’s a lose-lose.