So why are there so many black racists now?
There's a cultural inferiority complex and a vast reservoir of jealousy just under the surface.
Aside from a relative handful of slaves who ran away and took the "underground railroad" to freedom, negro slaves in the United States DID NOT free themselves. Freedom was handed to them on a silver platter, paid for by the blood and sacrifice of White people who got essentially nothing in return. Consider what is celebrated on June 19. Worse, the so-called "civil rights" movement was not about earning anything on merit ... from the beginning it was "gimmedat or we'll riot". There were heavy socialist/communist influences on the "black community" from the late 1800s. WEB DuBois was a prime exemplar of that.
All of this has poisoned the "black community" from 1865 to the present day.
The old "Don't get mad, get even" philosophy?