Jeffrie Givens emailed me this remarkable example. A girl wore a "McCain Girl" tee shirt to her school, which prides itself on its liberality and tolerance. Alas, most students called her stupid. One even said she deserved to be crucified.
The next day, she came to school in an Obama Girl tee shirt, and except for a couple of students who called her a flip-flopper, she was praised for being a smart girl--she had suddenly grown a brain.
Dear reader, if you claim to celebrate diversity, don't be a hypocrite. Really listen to perspectives other than your own and judge them on their merits not on apriori biases.