In 08 most of my friends and family were HRC supporters. Obama had to make his case for voting for him. Yes people had a tremendous sense of the historical significance of the 1st black president but considering all those black folks had voted white men into office, there was no automatic given they would all vote for Obama. It's really an insulting statement to make. Yet I know white folks that specifically voted for McCain even though they used to be dems.
Otoh I remember having a discussion with one of the old farmers down at the feed store who was so disgusted with Bush and the war he said " I quess I'm going to have to vote for that black boy".
It's just such a tone deaf statement to assume correcting income inequality is going to level the playing field after decades of racist, sexist, homophobic ingrained into our laws and society bullshit that has supported white privilege.
I like Bernie I really do, he's no more racist than I am but us white liberals never think we are, we've gone along with all of this. I commented to someone we get the policing that's acceptable to the majority because if it wasn't acceptable we would have changed it by now. Sure there have been some heroic people of all colors that have fought the status quo but not enough, not nearly enough.
And I'm not thrilled with Hillary although I plan on voting for her, I think she'll be a better president than bernie. I think Obama has been exceptional, I don't think the next president will meet the bar he set.