Answer: They are the party that is transferring money from white taxpayers to blacks. They are the party that gives federal and state job preferences to less qualified blacks. They are the party that will place a less qualified black in a college classroom over a competent white.
Why should blacks vote for a Party that wants the government to leave them alone when the other Party will break any law to give them other people’s money? The reason blacks and women vote for Uncle Sugar is because they feel they cannot compete on their own.
And let's not forget the awarding of lucrative federal contracts to "minority-owned" businesses (or at least businesses that are "officially" owned by suitable minorities.
Blacks feel that, if affirmative-action, minority-preference, equal-employment and welfare laws were repealed, they and their families and friends would be much worse off economically.
And they would be right. This is their primary consideration, and there is NOTHING that Republicans can do about it.