If you took your DeLorean back in time to 1985, and you told someone, "In the year 2015, we'll have an effective treatment for AIDS, gay marriage will be the law of the land, and a black man will be president," your interlocutor would probably assume that you live in a perfect Star Trek future, where all racism and discrimination have been made obsolete. After all, you even have a portable, handheld supercomputer that can diagnose health issues.
Two things are undoubtedly true: 1) The world CAN change. 2) We still have much to do.
"black president"<p>I'm not sure why this is even relevant. I don't care who is president (ethnicity,gender etc), as long as they can run the country. Focusing just on race is part of the problem. We need to be focusing on the best person for the job.