Over one million Jewish children were killed in the Holocaust, and approximately two million Jewish women and three million Jewish men.
In high school we learned about the Holocaust but learned more from an experiment in one of my classes. The teacher decided that people with red hair were bad, and should be done away with. He put all of the kids who had red hair in a closet, I think there were four or five of them. Then he stood outside that closet door and talked about the tortures that were inflicted on the Jews, believe me, not all of them. Some of the kids laughed, the kids in the closet were very quiet. One guy was crying, and the teacher said he would be the first one killed. (Later they told us he had prepared them and knew in advance what would happen.)
Then we discussed it, and a few kids still didn’t “get it”. One I remember was a football jock, although we didn’t call them jocks back then. He just kept saying no one could do that to him. The next day the teacher said that football was bad and unnatural, and he went on and on until most of us agreed with him, and then the jock understood.