Note, It wasn't I that wanted to make it specifically about blacks. I said from the start the same can happen to anyone else.
How do you think separatists and supremacists of all races became what they are? By programming.
Dogmatic programming can affect any closed group whether it's about race, religion, nationality or any other ideology.
Blacks are programmed from birth with "group think" mentality and anyone straying from the group and it's core beliefs has to be ostracized and destroyed.
I've seen people cut off by their entire family for breaking out of their "group think".