As a voting bloc, generally Blacks are hopeless in elections because they see themselves as victims. They do not see themselves as individuals. Until that happens, they won't fully be part of the American community and vote Republican.
Even though blacks are solidly democratic, there are outstanding individuals such as Alan Keyes, and J.C. Watts. There's no man that I respect more than a black conservative. Imagine what they went through, and they know that their ideas are correct.
I don't know how old you are; however, prior to the '60's, there were a LOT of blacks, who NEVER saw themselves as a member of a group, and most assuredly, NOT a " special " class of victims. You are quite correct, though, that far too many blacks ( but then, so do certain " special interest " whites ) see themselves as a " group ", rather than as an individual. That only hurts them; whether or not they vote GOP.