Menzo wrote:^ It's not different then when people compare the existence of Santa Claus and God...
I think there is a big difference.
The Holocaust is a historical fact, something that could be proven. We have cold-hard facts, evidence that say loud and clear, "Yes, it happened."
Santa Claus and God, well that comparison makes more sense because we cannot proof that they exist, but we don't have proof that they do not exist either (admittedly, the existence of God is more likely than the existence of Santa Claus).
We do know that there was once a saint called Nikolaus of Myra. I'm not sure how much is known about his life, but there is evidence that he lived. However, there is no proof for a guy who brings presents on Christmas, and it's highly unlikely that there is. Ultimately, we cannot say there isn't, though. We cannot say that concerning anything supernatural, such as ghosts, magic and religion.
I prefer a God-Santa Claus parallel over a God-Holocaust comparison any day.