I didn't say they should actually do that, but he's right about blacks just taking any democratic candidate because they feel they have to.
...do you know any black voters?
They don't vote Democratic because they have to. They vote that way because they feel marginalized and maligned by the Republicans. They've switched party allegiances in the past, but they've long been an ignored faction by the Republicans. It's political strategy for both sides. Surely you recognize how choosing not to court the "black vote" curries favor with certain parts of the Republican party base. For many Southern Republicans, the 'welfare queen' has a definite race attached. That lends an air of superiority to poor whites who become more inclined to vote against their own economic interests. It's been a crafted message for ages, no different than civil rights largely being a ploy to secure the remaining "black votes" which still held Republican after the New Deal. It's also no different than the way the Christian vote was courted by the Republican party. Honestly, what's sadder? A voting bloc that feels marginalized by race or a voting bloc that feels marginalized by religion?