The Black Israelites would be an example toxic "black pride" that you mention.  All races have racists and racism just breeds more racism.  For example, I grew up in south Louisiana and became friends with some Vietnamese guys that I'm still really good friends with.  My parents did not have an issue with them staying over or anything; however I was not allowed inside their grandparents house because I was white. As it was explained to me, white and black people were super racist to their grandparents when they first got there, so they just started not liking black and white people back. I'm just glad it didn't keep going down the family tree, because I really learned alot about other cultures besides the white and black I was used to (my town is 70% black).  There are plenty of racist white people around there as well and that type of hate just recycles itself as hate going the other way for future generations.