Another real reason is that due to restrictions in many states on felons, parolees and those on probation voting, a significant percentage of blacks are already legally barred from voting.
It's obvious, though, that these state restrictions are not enforced in heavily black precincts.
Can you imagine being a poll watcher in those precincts, with the wrong skin color and conservative temperment. You’d be lucky if your car was in fewer than 40 pieces when your day was done.