It's been a hard Kwanzaa this year. I haven't received a single card, and the "holiday" is almost over. I received a lovely letter yesterday from a black New York reader, but she didn't say a word about the black supremacist holiday. She wrote to give me a heads-up that while Halle Berry and Alicia Keys are making a movie about George S. Schuyler's daughter, Philippa, they don't even know how to correctly pronounce "Schuyler." My reader, an admirer of George S. Schuyler, pretty much ordered me to rectify the matter. I was looking forward to getting Kwanzaa notes and...