The whole political ideology of white supremacists and fascists is based on the denial of basic history, of basic science. It is a fundamental aspect of their ideology because to accept that the holocaust happened is to accept that genocide is the end result of their political beliefs. What separates the Marxists from the Fascists is this, in the past both communists and fascists committed horrible atrocities. To the communists the ends always seemed to justify the means (building a ‘bright communist future’, rapidly industrializing to prepare for the next world war, etc.). Yes terrible things were done by the communists in the name of building communism but the ends and the means were always separate. The fascists on the other hand cannot separate the ends from the means. The fascist ideology is inherently based on these extreme ends, the means for them are just as extreme and evil as their ends. White separatism, anti-semitism, white supremacy, white nationalism, anti-intellectualism, and blatant racism are the foundations of their ideology. The eradication of the jews who are supposedly in charge of the world is a cornerstone to their ideology, yet they claim the holocaust never even happened. They claim the death camps were in fact ‘prison camps’, clinging to that justification as if even that were okay. Many Marxists on the other hand do not deny the past (myself included). We try to learn from the mistakes of the past, the extreme measures and extreme authoritarianism that was used in order to ensure that history does not repeat itself. For us the denial of credible and commonly accepted history is not a fundamental part of our ideology. Find me a Nazi who accepts that the holocaust happened and I’ll find you a medal.