There's a complex of these passengers you can't discuss because it wakes them up and they reflexively defend themselves. They wrap themselves around your sense of truth and it's impossible to get them out.
We each have the free will to choose willful ignorance over humble learning.
You are correct, we can't "get them out"; only they can do that by exercising their free will to choose to become better human beings. We can, however, attempt to teach them with our positive ideals, attitudes, and behaviors, but we can only lead the horses' asses to water, not make them drink.
Note that we must remain humble and grateful in remembrance that we ALL used to be horses' asses, once upon a time, before we entered the Path of Love.
Sleep tight. :)