I agree with just about everything you say. But as your chart shows, there is a substantial African-American middle class, and it is growing. One of the highest growth ethnic market segments of the past few decades has been the African-American upper middle class. So the picture isn't entirely negative. There has been upward mobility among a significant portion of this ethnic group. Most of those who have succeeded did so because of government-subsidized programs such as public schools, community colleges and government employment.
I myself am a professor at a state university, and I have advised and taught quite a few disadvantaged minority kids. For the most part, those that make it are much more traditional, polite, well-groomed and prepared than their Anglo colleagues. But far more are recidivism statistics. About 15 percent of the freshman class at my university is African American, but less than five percent of the graduates are. When we look at the reasons for the high drop-off, the biggest one is that they simply cannot read and write at a level comparable to other college students. I don't blame the schools. As you point out, their social structure is failing them.
I think it is the height of disingenuous liberal arrogance for Moochelle to lament the return of "segregation" and ignore the fact that this has happened after two full generations of force-feeding the African-American community the socialist elixir. Those must be pretty thick blinders she's wearing if she cannot see that her approach to the problem has been an abject failure. Either that, or she does see it and doesn't care because the system feeds the poverty pimp infrastructure that ensures her empowerment. I tend to think the latter.