I don't think you understand how proportional delegates work and the difference between winner take all. 
Yes I do. All the superdelegates are for Hillary and she's getting the vast majority of other delegates. Bernie will have to win big in the "Winner Take All" states like Texas and New York to even have a chance. Obama did it without winning those states but Bernie had to win the black states....which he just isn't.
Its not that black folks hate Bernie Sanders...its just that we feel that Hillary Clinton is a much better positioned competitor. We cannot afford to lose to the GOP with Bernie.
Maybe if Bernie campaigned saying that he was Col. Sander's brother then he would have had a shot at the black vote...(Had to get that out first before someone thought of it)