12ga = Zero recividism. Problem solved.
Ping! Read the article. Be warned; it’s coming here.
Yes, the 12 ga would prevent the crime at that time. But would the sheriff arrest you if the vandal/robber was shot, or he filed a complaint with the law? And how long would it take another thief to return knowing that you were locked up as a threat to society? Dammed if you do and dammed if you don’t, just like Zimmerman found out.