And what happened to the Jews can and does happen, though not in the same way, to others. It was unprecedented, but now the precedent is there. It depends on all of us, especially on you, the politicians of this world, to turn this from a precedent into a warning. In order to deal with the universal implications, we must deal with the Holocaust's particular history. We don't live in abstractions.
All historical events are concrete, specific, particular.
It is precisely the fact that it happened to a particular group of people that makes it of universal importance, because all group hatred is always directed against specific groups, for specific reasons, in specific circumstances. Evil is always concrete, specific. If you want to teach about it, teach specifics, with actual cases of real people. The Holocaust is an extreme example of the context of despair. It was motivated by a murderous ideology, not by social structures, not by pragmatic considerations.