Research Responding to child to parent violence

I was physically violent towards my mom when I was about ten or eleven. She was not an abuse victim. My older brother was physically aggressive towards me up to his early twenties. A psychologist I was seeing told me that was normal sibling behavior. I think if it isn’t a problem for a twenty three year old man to use violence to control his younger sister than a full grown woman should be able to handle a ten year old girl.
If anyone is uncomfortable with that opinion all I gotta do is make up some pseudo psych term. Call it “Daughter mother complications” now that I came up with a label for it I normalized it and it can not be called abuse