What precisely does He have to explain?
I am getting a lot of anger from your posts. That's fair enough - but emotion isn't all there is to an argument . What would it take for the omnipotent Deity to make you happy?
We've covered that God had a front row seat to the Holocaust. I agree with you. Being more or less omnipotent (which is tricky to define) I concur that he could have done something to stop it.
But here's the thing: at what point does he act? When the Jewish deaths reached one million? That's a little high of a number to wait until. How about the first Jewish death - but then who does He pick to die? Okay, how about when the German people began to listen to the anti-semitic voices in their midst, after all it was a bad attitude on their part that led to the murder of millions. But wait a minute, all they are doing is talking, nothing has been done and God couldn't PROVE that they were going to kill Jews, can He?
You see the difficulty in making people happy - on the one hand, they want their freedoms; but they also are terrified of the consequences. There is no way to control a free willed creature.
But why should God bother explaining these things to you? If nothing He could say would sufficiently calm you down, perhaps Nothing is the only response you'll get.
The fact of the matter is that the Holocaust was OUR fault. It was OUR idea (I speak of humanity in general) and it took HUMANS to concieve it and put it into action. God has already said that such actions would make us unhappy - he ahs said it over and over through many different mediums. I'm more concerned with British and American indifference to the Holocaust. If anything, being closer to the action, they had more responsibility. God sure watched, and I'm sure he was disgusted, but doing something? What more could he do that would still respect our free will, other than say, "That's stupid. Don't do that."
But the idea of Divine Intervention would create resentment in the minds of people who want something done, just not to THEM and THEIR rights. Because if God stops a Holocaust, then he has to reach in and stop YOU from doing all the things YOU know are wrong, or even the things you think are right but are still wrong in a larger moral sense. Because the Nazis thought they were right, and it isn't fair to let one guy get away with cursing his children and stop another from setting fires. Etiher we are all forced to obey or none of us are. That's just logic.
So the presence of evil neither disproves nor proves the existence of God, nor does it question his benevolence. All it does is condemn the humans who practice it.