An example of the sort of thing that inspired the previous post
David Neiwert has a post up at Orcinus pretty much about an anti-Latino inspired increase in white supremacist activity among Californian youth.
Though the article itself is interesting, the second comment is vital reading, IMO.
Gangs and such form along racial lines because that's still the primary determinant of identity for most folks…decry it if you will, but facts are facts. But race isn't, at root, the reason folks join such social clubs. It is the physical need inherent in all social animals to belong, to fit into a social hierarchy, that is being sated and unless better ways of filling that need are created gangs and skinheads will continue to have that irresistible allure.