I don't know whether Moore is racist. I think he said some pretty dumb and probably offensive things pertaining to race. But "racially charged" isn't racist. I'm one of those people who doesn't believe everything pertaining to race is racism.
Moore could be a racist. I don't know. But the guy who claims that his race is inherently superior to other races? Yeah, that guy is racist. Hence the distinction.
It's intellectually problematic, IMO, to lump in Moore with an admitted Nazi. It diminishes what it means to be a Nazi, which may be the purpose in doing it. That way, you're only a few steps from being able to label anyone a Nazi. For example, I believe Islam is a false religion. How close am I to being a Nazi, if that contributes to Moore's being "almost a Nazi"?
In short, I think your comparison of Moore as a sexual assaulter to Nazism is less problematic. It's different, but I don't really object to saying one sort of evil is akin to another. I do reject the slippery slope of comparing "racially charged" statements to Nazism.
You can be a racist and not be a nazi... Calling someone a racist doesn't 'diminish' the tag of nazism as they aren't the same thing.
In fact, that's the point steve was actually making.