As someone who lived through a brutal dynamic within my own family I can relate a little. They felt superior and thought I deserved violence and saw me as less than. My mother also likely abused my brother, but it's hard to feel sympathy for him, given the actions he choose to act out towards me. He was an adult when he committed the worst harm. I left my family of origin because I felt subjected to the ideal to keep up appearances of normalcy. I felt almost punished for not doing so.