At this point, to say that fewer than a million Jews were killed in the concentration camps is not even controversial to anyone who has investigated the matter. It's self-evident from the data. Most of what is called the "Holocaust" is a lie, including the number of Jews who were killed. The actual number who died in the camps (not were actively executed, but who died from any cause) is less than a quarter of a million. Probably a lot less, but I'm being conservative in my estimate. Most died of disease. Toward the end of the war many died of starvation and the diseases that accompany a weakened body. The Germans did all they could to feed the camp inmates, but the Allies cut off the supply lines, and food just wasn't reaching the camps. The starvation was wholly caused by Allied bombing.