IMO, In many ways black people, like everybody else, are better off materially than they were 75 years ago but spiritually they have lost something because they have become captivated by false values and addicted to instant gratification. And all the modern conveniences they enjoy have merely made the inconvenience of ongoing racism a little easier to endure.
In the big picture, to me the question has always been, why have many blacks risen above their lowly circumstances and acquired financial independence, while others have not. I agree with Chris in that it would seem to have something to do with certain people having superior coping and decision-making skills. (The same can be said about white people because they, too, have an underclass of poor people.) Everybody is created equal, but every body is not endowed with equal intellect, abilities or talents, so when all is said and done, it really does seem to be about the survival of the fittest; or at least the thriving of the fittest. And, of course, Capitalism and Democracy are not compatible so America is a country suffering from a conflict of contradictions. Socialism is what admirably blurs the distinction between the "haves" and the "have-nots" but that form of government is stigmatized because, among other things, it stifles the free enterprise - that exploits others.
Race inevitably enters the picture because of visible differences and a lingering xenophobia. Naturally, the race in power strives to maintain its supremacy over those who are perceived as a threat because they are the "them" against their "us". This simple scenario plays out in the war going on between Neanderthal cops and the sons of Lucy and it will probably get worse before it gets better.
The complicated black problem in America is entrenched. One reason is because black apologists tend to intellectualize it, and in their analysis they start out with a premise. Then they can't figure out why the "ergo" they come up with doesn't work when tried, never considering that their premise was a false one. Once they state the problem correctly taking truth instead of idealism into consideration, maybe the solution will be more realistic.