interesting question socci....i think it is to try and lend credence to the conspiracy theory that zionists & Jews are running the world.......that Jewish people lied about it to get worldwide sypathy to allow Jews to become omnipotent....conveniently forgetting that it wasn't just Jews who perished,,,,but homosexuals, the disabled, gypsies, anyone who wasn't in keeping with the desire for an Ayran master race......
the kinder thing to say is that it is too terrible a thing to actually contempalte happening...so it is easier to say it never happened or it is exaggerated...
IMO