>assumed teachers have the same protections in deep blue Washington state

California is just as "blue" as Washington.

>move to a state where the job prospects are better. That sounds like "let them eat cake", except that moving to another state as an American citizen is a lot easier than what of people went through fleeing the Sicilian Mafia or the Irish Potato Famine, let alone WW2 European front or the fall of Saigon.

There is no such state. Nearly every state is in budget crisis and cutting school funds, and a certain vocal segment of them are actively attacking the entire concept of education, banning books, prosecuting teachers who provide support to their students or talk about how the world works, and more.