I think its you missing the irony. You are endorsing exactly what you hate police for doing. How do you not realize that?
You don't answer one innocent person being wronged by wronging other innocent people in a different group. In the same way you obviously shouldn't harass someone for being black, you shouldn't harass someone for being a concentration camp guard. You should of course hold concentration camp guards that have actually done shit wrong extremely accountable for what they've done, more so than a normal citizen, but you immediately throw away the moral high ground when you start applying that logic to concentration camp guards that haven't done anything wrong and for all you know might be fighting the corrupt parts of the system from the inside.
And whats the goal here? Have every good concentration camp guard quit?