You believe the figure of 400,000-800,000 Jews killed, can you tell me why you believe it? Is it from a source you trust? What is the source?

I don't think German deaths (or any deaths for that matter) are unimportant, but I am reacting to your claim that the holocaust never happened. (Although how you reconcile the belief that the holocaust never happened with the belief that 400,000-800,000 Jews were killed is not clear to me at all.)