If we start at the end of the Civil War, the 'race' card has been on the table for 151 years. 

In that time, ethnic groups from all over the world from Vietnam to India to China to Indonesia to Lebanon to Russia to the Ukraine to Georgia to Bosnia to Mexico to Guatemala to Cuba  and dozens of other places have managed to come to this country and succeed where those black people here at the end of the Civil War and their descendants have not.  

There must be something else that can work than what we've done so far.   

I'm clueless as to what that might be.  Integration, Affirmative Action, All sorts of things have been tried but the immigrants keep doing better than those who have been here for 150 years.