You have to defend yourself and your home; arm yourself, son. That said, once you arm yourself, you have to teach gun safety to everyone in the home. Even those who swear they'd never touch a gun will be likely to run for it if they hear a noise, then boom, they've shot a siblng or parent. (We keep our weapons put up but within reach, and as the kids come of age, they go to the range and learn to douple-tap.)
We don't listen to the police about putting someone to death, though; we don't care about potential lawsuits from "injured" perps (come on, you'd WIN that case!) as much as the perp having a conditional Baptism before death; we don't care to be directly responsible for a soul dropping to Hell. But it depends on the situation: if someone huge is in your home and about to hurt a child, double-tap to the head, call 911. God can sort such things out.
You should also (imo) teach your children non-gun self-defense. It's gross, but thumbs through the eyes, while it may not prevent rape (I think it will), will certainly discourage the rapist from doing so again. (We had a guy who used hard fruit and made the kids learn what it felt like to push thumbs through eyes, and ...other less savory-sounding skills.) That's for when your children get older and have to defend themselves. Sounds gross, but can potentially keep people safe.
And um, turn the caps-lock off. :pop: