You know I don't agree with them. They just aren't necessarily anti-semites. Certainly a holocaust-denier is more likely to be anti-semetic than the average person, and it certainly is stupid, but whether they are actually racist or not is really between them and their Creator, unless they actually prove otherwise. Which NationalAnarchist kind of did. I think he is likely a Stormfront troll, but I've been accused of being someone else on the internet a few times before so I won't draw any absolute conclusions.
I only really need one word to say why the US should have stayed out of World War II. Stalin. Logically, if America wanted to "Save more lives through humanitarian intervention" they should have joined the AXIS side. Of course, liberals will tell you that murdering someone because of their race is worse than murdering them for their political views, but I think that's BS.