I've met people who survived German concentration camps, Russian concentration camps, and Japanese concentration camps. All had large numbers of people die around them and were treated subhuman. I've talked to Palestinians who families are concentrated into an area and are systematically culled. There has always been a lot of genocide going on in this world. It is not just a Jewish thing, they just seem to get more publicity out of it. Jews did the genocide when they entered the promised land around the time of Moses if I remember my old testament correctly. I believe the concentration camps in Germany killed millions of people. Poles, gypsies, religious dissidents, and Jews. Of course I also believe we landed on the moon and there are probably aliens in flying saucers. The pertinent question to be is not did a holocaust happen but how should we do things differently because of that? Does the US subsidize Israel forever and fight all of the Arab countries for it because of this?