The Supreme Court has issued its decision on affirmative action, but its full consequences will take months and years to materialize. There is one thing that’s become immediately clear, though: Affirmative action is most relevant only to the most selective schools. If the end of race-based affirmative action means that more black applicants will be rejected by Harvard in the coming years, we should remember that those students will not be deprived of a college education. They’ll just go to other universities instead, many, many of which offer excellent educations and post-graduation…