In the U.S., we've effectively created segregated public university systems that preserve and extend the status quo even as HBCUs have trouble maintaining enrollments. In every major metropolitan area, there's at least one or two public four-year colleges that are predominantly African-American. Under the cover of "extending access", we've re-created separate but equal in our higher education system: a place where mandatory busing won't solve our issues.
Which "we" is responsible? The individual schools? Parents? Students? And can you describe how it's a problem that some schools are racially homogenous? Given the same academic standards, a school with low minority enrollment will try harder to get a minority student than a school with high minority enrollment.
So you're sort of positing this Maxwell's Demon of Segregation: even though public policy and public statements all draw minority students (of a given level of ability) into situations with fewer minorities (by, e.g., lowering admissions standards, offering them scholarships), minorities still end up segregating. Some collective "we" is responsible (presumably in a way that requires this "we" to pay a little money to somebody else's "us"). But there are many missing pieces to the puzzle.
