How do you think we got to a five day work week? 40 hours a week? We just keep turning the ratchet.
PS you have a right to a non-asshole boss. You're buying someone's time, not their dignity.
Which is exactly what the GP post is saying. "Keeping your mouth shut" is an option, but unless you are doing it as part of a bigger strategy it is a very bad option and either of the other two would be preferable. If you accept as true the statement that reads "like everybody else", it means that too many people are taking the bad options and that most of they do not have any particular reason to do it besides cowardice. This is a problem for the rest of us, - specially the ones that want to make changes from within, - because it validates the bad bosses' behavior.
And just to be clear, to "shut your mouth" strategically is, in my mind, a form of delayed action. You do not accept the BS because you have surrendered to authority; you just avoid conflict in the short term to have peace of mind while you prepare your exit.
You don't have a "right" to a non-asshole boss, a happy and fulfilling work environment, or the right to express your opinion at work. Job satisfaction is not a "universal human right".