Cracked.com nails white racists on stormfront (well, it describes them - they self-destruct)
But even with all the hatred they're expending on other races, both supremacists and separatists treat their bigotry like a marathon instead of a sprint, always saving a little reserve hatred that they can use on each other from time to time.
The clearest example of their mutual antagonism is smeared across Stormfront.org, the biggest white pride forum on the Internet. In one thread, a girl asks if she's still allowed to be part of the white revolution since she once dated an Asian man by mistake. The separatists get to her first, saying it's OK as long as she promises never to do it again, but pretty quickly after that, the supremacists step in and assure her that she's been tainted forever and that she's officially "off the team." Then the two sides fight for another 50 pages over what kind of interaction with other ethnicities is acceptable. It's remarkable to see so many people accusing one another of not being the right amount of racist and genuinely threatening to hang one another when the white revolution finally comes.
http://www.cracked.com/blog/4-hilariously-unexpected-feuds-between-fringe-groups_p2/
How are thee stupid? Let me count the ways...