I don't see how a small group like that could truly oppress them, especially in an age where everything can easily be documented with video proof and when this case seem clear cut. Someone could have done this ten or twenty years ago. Running a small campaign on the platform of "fuck those racists" should be simple enough in a town with an 85% black majority, but that wasn't even necessary here because that clique's so dumb.
Anyway, I've made my point, you can have the last word.