From the article I linked above:
Danny Glover echoed Tatem’s complaints. When he joined the campaign in the spring of 2015 as its director for outreach to historically black colleges and universities, he believed he could help pull millions of young black people to the senator’s cause.
But it didn’t take long for him to feel that the campaign had no real interest in converting young black progressives into a powerful voting bloc that could have made Sanders truly competitive against Clinton.
Glover said he was never given a staff to help him match those crowds of white 20-somethings.
“It was viewed as something that we just had to do,” Glover told me over the phone. “We threw some resources to it to say we did it, but they didn’t put as many people behind it as they should have.”
Glover said that stops were cut from Sanders’ tour of HBCUs after the South Carolina primary, in late February. He said he was told by superiors that there wasn’t enough money to continue them. The Sanders campaign raised $44 million in March, its best performance to date.
Your article also said this: "Black people did not understand how his policies would help them"
Really?
They are too fucking stupid to want tuition free college, a higher standard of living, a living wage, Single Payer Healthcare, laser focus on domestic manufacturing, ensuring jobs do not go overseas, getting money out of politics and on and on. They are that fucking pathetically brain dead that they don't know how that would improve their lives?
Really? I guess so, since your article says that.
It also says that they did not like that he told them he was against reparations for blacks. Who in their right mind would think anyone would support that bullshit? Hell, even Hillary would NEVER support something so stupid is that.
Face it, they are just stupid and racist. Not much else to conclude really.