This is one of my pet peeves. People are so concerned about political correctness that they make comments that serve to alienate groups even further.
We should not be black, brown, white, yellow... whatever. We should be people. There will always be idiots who need to ridicule others. They may pick race, religion, sexuality... go ahead, just pick something that makes another person different, there will be people that do it.
In my opinion, the challenge isn't how to act or treat "blacks" as the original post was pointing out. It is to stop seeing someone as black and it's a two way street. So long as we all identify ourselves by our color, we are drawing focus to what makes us differenent.
Racism is such a taboo topic that it will be interesting to see the feedback to this comment.
If you are black, could you stop seeing and refering to yourself as a black person? Identifying yourself by your color, whatever it is, only leaves the door open for others to do the same.
Other discussions I have had on the topic show that people aren't ready to give up what makes them different, even if the outcome would be to defeat racism. It's a maddening paradox and no culture is immune.