My 1st instinct was to call BS...but on further reflection I'm afraid you may be right!!...It truly is something to ponder....
The book "The Bell Curve" suggested that intelligence, or lack thereof was a major contributing factor in the failure of "black communities". The authors did not necessarily suggest that blacks are stupid, but that the black population has exploded with the illegitimate births of unintelligent people born to the Davontes and Travons and Tanishas of the world. While this segment of the black population continues to increase, there are fewer Clarence Thomases, Condoleeza Rices, Denzel Washingtons, et al, being born to counter it.