Crouch overlooked (perhaps deliberately) a very important point in this regard. I think it's inevitable that "non-traditional" black candidates (i.e. Republicans, or candidates who are not African-Americans) will rise to the top and get a stronger look on the national level as presidential material than their African-American/Democrat counterparts. The Democratic Party has spent far too long pushing black candidates who are little more than silly caricatures that nobody with an IQ over 80 would ever take seriously.
Just imagine how offended Stanley Crouch would be if a white supremacist had produced a sitcom or movie in which the main character was an African-American presidential candidate named Al Sharpton -- or even Jesse Jackson, for that matter.