I think my problem is the word "celebrate". To me, if you are celebrating a holiday, then you are embracing its religious signicance. That's where I disagree with SC. You can enjoy, you can participate, but I don't think that you should "celebrate" Christmas if you don't believe that you are celebrating the birth of the Savior.
OK, I won't come and visit your home for Christmas. The 4th of July is another story, though.
