Ok. I understand what you're saying. I wasn't there, so I don't know all the facts 100%. But the main method of killing was done with poisonous gas. Now that I think about it, it does make sense that 6 million bodies would make it very difficult to bury. But the stupid idiots saying that the holocaust didn't happen just shows evidence of how really ignorant some people really are. The real problem is that there are stupid people that talk too much and end up making other people as stupid and ignorant as them, or maybe worse.
I know that evil is hard to understand. But just because it's hard to understand, doesn't mean it never happened. If someone on September 10, 2001 predicted what would happen the next day, he/she would be ridiculed. How can such a terrible thing happen? It's impossible, isn't it? Well, it did happen. And nothing is impossible. Evil does exist. The Devil exists. Drunk Trump exists. Put-In-Bay exists. Of course we don't want to believe it. But just because we don't want to believe it, doesn't mean it never happened. And not believing it, won't do any good to you, because either way, it did happen. I would suggest to you, the next time you plan on going away on vacation, plan on visiting the death camps in Poland. You'll see for yourself in person. They have guided tours for everyone, including you, and you can ask all the questions you want there.