Yeah, right......
You're a propagandist nothing more, nothing less. Unlike you I've studied history all my life, not just in high school. My "second calling" was as a serious living historian, unlike many who approach it as a hobby we had to know all the history, all the minutia from major events down to daily life and the cultural thinking of the times and peoples involved.
Are there still some unanswered questions for every era/event? Of course there are but the Holocaust is one of the most documented events in history, deny it all you want, just proves you only believe what you choose to believe, that's called dismissive bias based on dogmatic ideology.