The idea that one can just move to another job is a luxury in many places. Many areas have only one or two employers, so there’s simply no place to go.
There’s also the fact that no matter where you go, you will likely always find someone you don’t get along with. Learning to deal with those people is a life skill.
Meanwhile, culture is increasingly dictated by bad actors - making it even harder to oppose them. For example, some of what is said to be "professionalism" are basically rules that make it harder to deal with bad actors or companies.
Edit: I switched because of this, taking the risk, it’s worth it. At the current place I got another bad actor, but we could manage these differences.