I can't get my head around it and I am in my 60s.

The main thing to know is that it spreads. We seek social permission to lord it over certain groups or to insult certain groups of people. Once social permission is granted and critical mass is reached..and it does not have to be much...things rapidly accelerate. Then a few thugs with weapons of almost any sort can start making threats to people and the mass of people will go along with the threats out of fear. They will say I will kill 10 of your neighbors if you don't report all the Catholics you know. Or I will kill your husband if you don't reveal other information. It is generally not that people are evil; they are terrified.

Once the Nazis got the formula down pat, it could be used by others like a franchise..Pol Pot, Ida Amin, whoever.

So we have to stop things soon in theprocess. mg