Not at all. It's called "assimilation" and sometimes blacks like Sowell or Jason Whitlock are referred to as "collaborators." It's also the reason you found blacks fighting alongside the Rebs in the Civil War. Our history is rife with those minorities who collude with the dominant culture (being white) in order to reap at least partial benefits of the privileged and in hopes of escaping discrimination themselves.

I'm sure that in the case of a black participating in a racist attack on another black, there was at least in some part, the idea that it's better to be with the attackers than it is to be the one attacked.

Self-preservation is a powerful force, no matter what color you are. This is especially true when you start looking at the dynamics of "mob mentality" that often infect younger people in enclosed societal settings such as those found within schools. Behaviors young people would never dream of participating in at say, a family reunion picnic, are often considered 'normal' within the school 'culture.' Such as ganging up on a "nerd" or "geek." It brings to mind "Lord of the Flies"--if that helps.

Either way, a racist attack--no matter the color of the perpetrators, is still a racist attack.