Yeah. That's total garbage. Black People didn't vote for Obama because he was black. They voted for him because Mitt Romney was incompetent when it came to the Issues facing Black America. Which isn't really that different many republican politicians really.
Please don't misinterpret what I am saying.
Regardless of sub-group, many Americans simply lack the knowledge to have an honest dialogue on foreign affairs and economics issues. The political/media conglomerates (of both Democrats and Republicans) realize this, and they realize that the best way to "get votes" is to focus on unrelated (yet certainly very important) side issues - often social issues -- (Abortion, Gay Rights, Racism, Sexism, etc.)
It's much easier to engage an 18-year-old kid in the political process through "politicized" social campaigns, rather than meaningful discourse on global affairs/public policy. For example, don't get me wrong, gay marriage is a very important equality issue for many. But getting this 18-25 demographic to put a picture of an "equals" sign on their Facebook profile is an easy way for the Democratic party to get support among its otherwise 'less-politically-inclined' demographic. On the same token, church preachers who warn attendants about "the government's attack on religion" is a way for the Republican party to get support among its otherwise 'less-politically-inclined' target demographic.
This manifests itself with some of the trends I mentioned in my earlier post. Many of the less-informed segments of each voting demographic will tend to align themselves with a candidate based on likeability.
Some of the hockey moms who may be less-informed on political issues may tend to vote for Palin purely because she's a woman they can relate to.
Some of the more urban women who may be less-informed on political issues may tend to vote for Hillary purely because she is a socially progressive woman.
And on that token, some African-American voters who may be less-informed on political issues voted for Obama purely because he is a black man.