It is clear that there is no longer any rule-of-law and the police will do nothing to protect the homeowner or his family.
Plan for an appropriate response.
It has been that way for 2 decades now. And if you do shoot, the police will show up to haul your butt away.
Welcome to Soviet Socialist States of America
True enough.
But if you don't shoot, the mob is eventually going to burn down your house and kill your family while the police watch from a safe distance.
Either way, your former life is over. Might as well take down as many of the attackers as you can.