Why don't we kill pedos?

Why don't we kill pedophiles and child molesters? I see these freaks bragging about being pedos or talking about kids they see in public all the time here on 4chan. Execute a few thousands of those sick shits and I fucking guarantee that shit will stop.

I think we can all agree that heterosexuals are the worst of all. By far a majority of crime is committed by heterosexuals and not just sexual crimes, like rape, they commit all sorts of crimes to feed their sinful heterosexuals ways. It's disgusting.