It really wants to make a point that the Holocaust did not occur? Common now, even the Nazis admitted that it occurred. Yeah they killed a lot of people, and a lot of those were Jews. This isn't unexpected, it has always been done (just not Jews). Take Russia with the Gulags, 25 Million. China during its mass starvation, 50 million. Cambodia with its cleansing of intellectuals, 2 million.
We just learn more about the Nazi Holocaust because there is so much evidence of it, from video to pictures to survivors to the actual culprits. The other examples lacked evidence because they were extremely closed off nations. To deny that the holocaust occurred just sounds stupid.