The use of deadly force to protect your "stuff" is a tough decision to make. Stuff can be replaced getting yourself involved in a shooting and maybe getting killed yourself ... is it worth it? Don't get me wrong, I would be highly irritated if I can home and found I was broken into. But if I came home and caught the guy in the act? Maybe beat him about the head and shoulders and call 911. I can explain the bruises as him slipping running away
If they break in and I'm at home with my family well then all bets are off. You do what you have to to protect your loved ones.