The kvetching about the Holocaust rings hollow when one realizes that Bolsheviks (whose leaders were mostly Jewish) killed far more people. They specifically encouraged resentment from minority groups towards Whites and Christians, (sounds familiar...) and are estimated to have killed between 30-60 million. (a wide estimate, but that variance exists because unlike the Holocaust people are allowed to compare and debate the evidence). And then the Bolsheviks made antisemitism punishable by death because too many Russians were "noticing" that most of the Bolshevik leadership wasn't actually Russian.
If one was actually MATI about genocide, then one would talk about the Bolsheviks just as much (if not more) than the Nazis. The Western education system doesn't, because the emphasis on the Holocaust is not really about "genocide bad", it's about instilling the idea that "Jews r good boys who dindu nuffin".
There's an interesting religious/philosophical point to be made about how the average Western person will react more strongly to Holocaust denial, than to Jesus denial. In the public consciousness, the Jews have replaced the murder of Christ with the murder of themselves. Saying Jesus never died was once blasphemy, but is now passe. Saying 6 million Jews never died is the new "blasphemy".