You're right, it is really difficult and can come with severe consequences. These situations are when our values are truly put to the test.
These moments test us, but they also define us.
Or quit and return when it's not a hostile environment. No one has to eat his shit. They can leave and come back when they have a genuine opportunity to have an impact. Is that impossible in your view?
Possible but unlikely. Most will move on to another job or retire.
There are several character qualities more important than immediate personal comfort.
Affording to feed your family and put a stable roof over their heads is a bit more than “immediate personal comfort”.