I'm sorry, but you are WAAAY off. He's talking about how racism of any kind is bad. It's about his experiences in a 70% black highschool, where he and his white friends often took abuse for things like slavery, segreegation, etc. when they clearly had nothing to do with any of those things. He's basically just trying to say that racism is racism, it doesn't matter who does it.
I'm sorry, but you are WAAAY off. He's talking about how racism of any kind is bad. It's about his experiences in a 70% black highschool, where he and his white friends often took abuse for things like slavery, segreegation, etc. when they clearly had nothing to do with any of those things. He's basically just trying to say that racism is racism, it doesn't matter who does it.