I think so.
I wouldn't blame 'em much, either.
So much hype surrounding his campaign!
If he doesn't take the nomination (he's NOT my choice), the disappointment and feelings of disenfranchisement may well drive Black Americans to abandon not only the Dems, but the whole process.
They're already pretty well estranged, one thing or another. It wouldn't take much, I shouldn't think, to completely turn'em off.