This issue is far beyond merely defense of property. I have vulnerable family members in my house. If I have an angry mob outside that is in the process of committing arson and/or other mass violence, that is an imminent threat to the lives of my family. The rioters can go elsewhere, but I can't move my home.

I'll turn on the video recorders and audio recorders. I'll attempt to get as much evidence recorded. Anyway, my state does have a form of the Castle Doctrine. There is no retreat requirement in my state. I'll make a judgment call in the moment. If the lives of my family are in imminent danger, there will not be any pontificating about the laws of self-defense. The lawyers will be there afterward to do all the pontificating. My job is to protect my family.
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If you're reading this, it's too late.