Might want to consider moving to Australia. At least they think about the issue.
"
In summary, the literature indicates that adolescent violence and abuse to parents is a significant problem that has been neglected by clinical researchers. Although this is clearly a family issue, abusive adolescents and indeed fathers are unlikely to seek counselling for themselves.
Mothers, the main targets of abusive behaviour, are the most in need of assistance, yet there remains no reported clinical evaluation of a group intervention supporting mothers in this situation."
Try finding out about any help for abused mothers in the state of MN. Good luck.