I disagree my brotha, the whole point of BET and "historically black colleges" was to expose success and education and inspiration to the young black community. In many cases, black folks that were successful attempted to build ins utions (commercial and private) that enabled the community rather than allow them to feel disabled, BET and colleges just two examples.
Now, in these modern times, we're getting further away from the neccessity to have them, but there was a time when they were good. And so, they exist as reminders of the cultural journey and not actual proponents of one race over another.
Also, M&M's rap career has helped bridge the BET Awards ceiling. I'm sure he's won something or performed for them.
PS: Whites can get into Morehouse, they don't discriminate. Try it.