I feel like we need a new word for physical violence.
When I see "violent", that's what I assume it means, and 10 percent of elders being physically attacked is a crisis.
But raising your voice one time in an argument with a parent, who might also be yelling at you, while not good, I don't see in the same category. That can still be an arrangement that's good for everyone involved to continue, if everyone can apologize and agree to do better.
I don't see physical violence in the same way. Once that line is crossed, it's probably better for the living arrangement to change.
"insulted"
The Mom in this story calls everyone "stupid" at some point or another. Doesn't mean that the relationship with every family member she calls "stupid" at some point needs to be cut off. Although she should try to stop using that word so much.