I think if you really look at a list of "black achievement" even now in 2017, you might see where resentment on their part is plausible.
Indeed, blacks could arguably said to be popular in a type of modern day minstrel show and that's about it. Entertainment and politics - not in science or industry. What is pop culture and politics but a modern day minstrel show?
Quite sad, really but the worst part is that the black sub culture seems to be satisfied with playing court jester to the downward spiral of post modern society.
Black people are coming here as immigrants from Africa...having grown-up dirt poor, in countries that can’t spend 1/100 what we do on education, some not even speaking English.
They put their nose to the grindstone and have blown away local blacks in achievement within a generation.