Severely aggravated by bad cultural values in Black, Hispanic, and White population with forced "tolerance" of those values by "Progressives" and "Leftists" in the White population.
What he didn't get into is how most of those people evolved and progressed, eventually getting to the state most of your neighboring Americans are at today. Good or bad, most can read and use enough math to handle personal finances and responsibilities. Most still instill good values in their children and try to maintain their marriages.
My observation is that blacks, as a group, aggressively resist improvement and claw back those who strive to rise above ignorance. Those accused of "trying to be White" are socially ostracized much like people trying to escape the backwardness of Islamic totalitarianism.
Blacks would have been totally on par with everyone else today if not for the Lyndon Johnson/Ted Kennedy "Great Society" schemes that fostered dependence on government while breaking their traditional family structure.
Just when parity again became visible on the horizon Barack Obama arrived to re-establish divisiveness, resentment and unearned sense of entitlement. I think he was a mere speed bump in our history and will not enjoy his eventual meeting with Judgement.
My point is that our Founders devised a system so great that nearly everyone, despite mental limitations, still has a decent chance for a good life if they have the willingness to try - no matter what evil individuals, groups, agencies or political parties do to prevent it.
But I'm preaching to the choir here. Where did I put that donation plate? (LOL) Amen.