I think you missed the point. I mean Justifiable homicide. That's exactly how grave the threat here is, and not just for minorities.
e: for the record, i am the most non-violent person i know. I won't kill a fly, even flies deserve to live. I have no such feelings towards Nazis
To a lot people, the analogy is that the dangerous criminal with a gun has already broken in and is aiming the gun at them, they're in survival mode, and are not looking for non-violent solutions. I get your perspective, just trying to show you why so many are saying to "shoot the Nazis".