Why only single out blacks when women, Hispanics and other groups ALSO support HRC?

[TwilightZone]

8. It's also intended to create a false belief that her appeal is very limited.

"Hillary won the confederacy" is basically intended to mean "only black people vote for her". It's dog-whistle politics on the left, and it displays a fundamental misunderstanding of who Democrats (and people, in general) are and how widely they vary.

Sanders takes a one-size-fits-all approach and expects it to apply to everyone. Doesn't work, yet some of his surrogates dismiss anyone who doesn't "get" this as just too dumb to understand what's best for them.

Hillary, on the other hand, understands that variability and appeals to the widest spectrum of voters. She wants to represent all Democrats (and people, for that matter) and acts accordingly.

I find it a little ironic that Sanders supporters are continually accusing Hillary of elitism, while they defend (or just ignore) the clear signs of it in their own candidate. "It's just the south; it shouldn't count" couldn't be much more elitist.