Conversely, isn't corruption of blood specifically prohibited under the Constitution? Can the sins of the fathers legally be visited on the sons, even unto the umpteenth generation? And what if the father in fact committed no crime, as is the case with slavery, since it was perfectly legal at the time?
Come to think about it, Affirmative Action is really about a title of nobility. That's why all right thinking people in this country view AA as being inherently unjust.