William Pierce, who wrote "The Turner Diaries", a fictional book about a race war which inspired Timothy McVeigh, was a white nationalist. Here's some wikipedia pages to start with, you could read "The Turner Diaries", but even despite it's awful politics, it's a terrible book.
I have little doubt in my mind that William Pierce was a racist. He makes it pretty evident. I'm not even going to argue for his case, let's put it that way. He is named as the "principle ideologue for the white nationalist movement" but he was the leader of the white separatist National Alliance organization. The article doesn't mention that he himself was ever part of the white nationalist movement. To me that doesn't necessarily mean that all members of this "movement" identify themselves as racists, but after doing some reading it's clear that they at least have a history of racist groups claiming white nationalism for their misdeeds.
I think I've got an idea now of at least the bigger picture. Thanks for the links and the background information.
http://en.wikipedia.org/wiki/William_Luther_Pierce
http://en.wikipedia.org/wiki/The_Turner_Diaries
http://en.wikipedia.org/wiki/National_Alliance_(United_State...