Well.....I suppose they said those things because they think Democrats will lose seats in Congress in the 2010 election. Did you have a point, or was your question really that simple?
Yes, there are multiple ways to point out cultural differences between different ethnic groups. Saying that African Americans and other ethnic minorities have traditionally scored lower on standardized tests is one way of saying it. Saying that n***gers are stupid is another. I would...
It doesn't. But it does divide a minority of the people into two small, very LOUD camps. I don't actually know too very many people at all who are political whackos, even though I live in one of the leftiest places on Earth.