He's not just mimicking his father's actions, he's also mimicking his parent's roles. You cannot make his father change. The only person in this situation you can change is you. He sees one person behaving disrespectfully, and sees the other person accepting it. I speak from the experience of a child who grew up in that kind of a family. I grew up to accept disrespectful behavior. My brother grew up to be an abuser. Those are the examples my parents set for us.
L