Just because it doesn't have the word "hate" in it, it isn't hateful. Hmmm yeah?
Denying the Holocaust could actually mean many things, it could even be seen as mocking someone.
It doesn't have the word 'hate' in it, nor does it have any other derogatory or slanderous terms aimed at any particular people. You can twist words as much as you want but it doesn't change the facts of what they mean.