Well the man is the head of the house, you see. So what he says goes. Even if what he says involves lifetime psychological damage!
To be somewhat fair to my mother, most of the worst stuff he ever said to me was when she wasn't around. To this day I don't know if she knew a lot of it. At the time he assured me that was he said came from both of them, and since I'd never seen her stand up to him for us, I had no reason to doubt it.
Conservative rural Christianity. It's fine to be gay as long as no one ever knows about it.