africa americans were slaves when they were sold to America and now the government wants to compensate them using affirmative action for the mistreatment so that (when they are more educated) there will be a social stability.
My point is that there are ample of opportunities over more than 100 years of history for them to have a higher level of education but apparently they did not do well. Why? I cannot make a guess. But the historical mistreatment can't be the reason.