Go here, if you care, and read, and follow instructions.
The Holocaust was some fucked up shit. I'm not too bent by all the fags and gypsies that bought the farm. At least some of it was positive.
The rest of it was just some majorly fucked up shit. In fact, shit can try it's hardest, and it cannot possibly get more fucked up than that particular shit. Human minds have a facility for blocking out ugly disturbing shit. Try to remember the worst scene you saw in The Texas Chainsaw Massacre.
If you could open every mind on the planet, and feed them the entire agony, the anguish, the horror, and the pain of The Holocaust, humanity would go mad in ten minutes, and sit around muttering to themselves while they gnawed their own flesh.
And Osama bin Barack wants to go sit down and chat with that little Iranian cocksucker. And Jimmah Carter still has terrorist semen drying on his chin.
Anyway, go do what you can. It is for a Cause. The major reason God called your grandfathers to go overseas and die.