You want to both leave and document his behavior at the company because if it happens to you its happening to everyone. If you just bail, there's not a record o

You want to both leave and document his behavior at the company because if it happens to you its happening to everyone. If you just bail, there's not a record of their actions. If they've made any legal threats or violated any labor laws, definitely seek a labor lawyer, otherwise just over-document every interaction with them until you leave and document that you are leaving due to an abusive environment. Send that documentation to literally everyone. Like orgwide, up, down, sideways.. as long as its documentation and not libel (and you're in the US, not UK etc)