Responsible people have a difficult time accepting the fact that retribution is the only thing keeping many of their idealogical opponents in check.
Furthermore, you can see from their choice of words that said opposition is usually hoping for someone else (presumably, the government) to do the shooting.
I’ve used this for years, though I’m getting more hesitant to do so as the left feels “empowered”.
I tell libinlaws that if they think they want to redistribute my wealth, come over here and take it.
Of course, no one ever does since they don’t want to consider themselves a “bad person”.