They are in Russia, and America, and Israel, and scattered throughout the world. This is war. The Americans put Japanese in camps. The Japanese imprisoned Chinese. The Russians tortured Poles and Germans.
War is hell.
The Nazis are no different from anyone else. Post Hoc Rationalization. We are now up to 18 proofs all converging toward one conclusion. The revisionist is desperately swinging away at them all, steadfastly determined not to give up his belief system. In addition, the revisionist then shifts the burden of disproving all this evidence to the historian by mistakenly demanding that each one of these pieces of evidence independently prove the Holocaust.