Doesn't matter. He's doomed. He needs 95% of the "middle" dem voters (30% total) plus his base plus 95% of the Black vote. He can't do both.
To have a prayer with the middle, he has to stick to economic justice issues. That's what they want to hear (think Carville/Begalla during the 1992 campaign "It's the economy") and any deviation from that message is going to kill him.
But if he DOES stick to that message, it's going to cost him 15-20% minimum of the Black vote.
So he can't get the numbers no matter which way he goes. And so the only guy willing to take on the banks and the polluters and the Koch brothers is eliminated by his own people. Which is so friggin' predictable that, if this were a novel, I'd stop reading it now and throw it away.
By contrast, HRC needs about 50% of that middle - and the best numbers say she already has 60% - and about 20% of the Black vote, which she's going to get easily. BLM won't be able to get to the stage (not at a Hillary rally, no fucking way), and when she steps out in January, she gets the nomination without giving a fuck about Blacks or the middle class (let alone the working class). At best, nothing will change. At worst, she loses to the clown car and EVERYTHING changes.
So while we slide into the pink, dead ocean of the future, we can all bitch about how "all politicians are the same", and how Senator Sanders is worse than George Wallace.
What you seem to be saying is exactly what I was getting a sense for in the general reaction to the activists; most white Liberals are secretly racist as fuck.
I don't pretend to understand Black folks. I am not Black. But I DO understand white folks, at least to some degree, and the number one thing that American whites want is for tomorrow to be the same as yesterday,
even if that means compromising their principles, which by no means are even remotely important as their sense of entitlement (when taken as a demographic).
White folks know they're doomed, and they're willing to listen to change. Very narrow change. Very very narrow change. They want to hear about the economy, because the ass-fucking has finally chafed them to the point that they can't ignore it.
But if the message widens, even to include things they generally agree with (BLM, for example), then suddenly the herd spooks and Senator Sanders is maybe a little
too radical. Not because Blacks are involved, the same would happen if he brought up the murder rate among transgendered people. So they clench up and vote the "safe" way, which is to say Clinton.
Do I agree with this mindset? No. Is it a political reality? Of course it is.
Last night in Portland, Sanders had his handlers/intro speakers talk a great deal about BLM. Then he mentioned it, then moved on to his central message and stayed there. That's a hell of a lot more than is going to come out of HRC (who, again, doesn't need the majority of the Black vote and doesn't care, because Iran needs a paddlin' and contracts need to be signed), and certainly more than the clown car is going to say (on account of they actively hate persons of color, Black, Hispanic, whatever).
Is it good enough? No. Will it have to do? You decide.