There is no case to be made in the US unless the constructive dismissal was discriminatory in nature. It is legal to get people to quit by making working condit

There is no case to be made in the US unless the constructive dismissal was discriminatory in nature. It is legal to get people to quit by making working conditions worse, as long as you don't break any employment laws by doing so. Say that I want you some of my employees to quit. I say you are only allowed to have meetings while doing handstands, but I provide reasonable accommodation for disabled people who can't do handstands. If I fire you for not doing a handstand or if you quit because you don't want to do handstands, I have done nothing illegal under US law. Doesn't mean it's a good system. But that is the system we have.