I still haven't adopted Christmas as a holiday, and I doubt I will, but the sentiments are certainly worth propagating. Since Christmas originally sprang out of various solstice celebrations and the Roman Saturnalia, I'm more likely to mark the passing of the year, than an erroneous date of the birth of Christ. It's now become so hopelessly commercialized that I feel absolutely no attraction to it. But it means a lot to many of my friends, so I wish them all, and everyone to whom it means something important, happy holidays. Likewise to many many Jewish friends celebrating Hanukkah.