What has been the effect of the Supreme Court’s ban on affirmative action?

So when some colleges released data this month showing a decrease in black and Hispanic enrolment, many were quick to blame the Supreme Court. Harvard University, Amherst College and the University of Virginia reported decreases in black enrolment from last year. Brown University and Massachusetts Institute of Technology (MIT) showed declines in enrolment of both black and Hispanic students. But assuming that these dips can be blamed solely on the ban would be a mistake.