I would absolutely hate to live in so much fear that I felt the need to own a gun. As mentioned ad nauseam stuff can be replaced so stay safe and hidden and phone the police. That's what insurance is for and even if it came to defending yourself imagine having to live with killing someone? Or say you miss and hit a family member or neighbour? Or escalate the situation that was just a burglary but you make it worse by trying to be Rambo.
It's just insane to me how people have this mindset where they think they can and would defend their home or worse those that think they could take on their government.