OK.
This is how the real world works.
Whoever pays you is your boss.
Do the instructors pay the students?
Bingo. It’s the main thing students don’t realize. This isn’t high school. You’re a paying customer. You have every right to be in that classroom. Higher education is ABOUT discussion. They’re so used to doing “what the teacher tells you” as an authority figure they just comply when they shouldn’t.
Anyone else (older people) would sue but of course the prof’s know that these young adults don’t really know about that and probably don’t have the resources to do it.