Well, it was a horrible massacre, that no one can deny. However, and as most things refering to the holocaust, the politicians use it to show the most elegant, charming and civic hypocresy. I just detest to listen to the speeches of peace and love, and about how "this should never repeat", while the most powerful countries in the world spend massive ammounts of budget on weapons of mass destruction and armament development which could kill more people the Holocaust ever did in the blink of an eye. And yet, thousands die every day in Africa, but they just turn their head pretending they just didn't see.

In "The Unbearable Lightness of Being", Milan Kundera explained how the concept of eternal return thought by Nietzsche would twist the whole concept of history: if everything that happened through our lifes was destined to be repeated over and over ad infinitum, then every error would be more than lightness that fades away once years have
passed. If things were going to repeat over and over, every error would be fatal, eternal, and those who died back then, and those who die now, would be dying again, and again, and again, and this would be eternity. Under this concept, the Holocaust would happen again, all the victims would live through hell again, and yet again, if you wish to end another infinite loop of suffering, then maybe the best way of avoiding another Holocaust is not to develop the means for it to happen, as are most developed- and some developing- countries today.

Yes, organizing events in the memory of those killed is a good thing. Doing something more than that would be better.