That the U.S. Congress decided to legislate the importance of Christmas is, in itself, something ridiculous. For centuries the Christian world has been celebrating Christmas and everyone knows its importance to the Christian world. The trouble is that with increasing materialism in the world, especially in the United States, Christmas has become just another holiday to exchange gifts and boost the economy. Everyone is more interested in how much was spent and what it means to the economy rather than the spiritual aspect of the day. Paying lip-service in church for a few minutes -- mind you, the church service must never interfere with the enjoyment of the ball game and other events!! -- does not make a good Christian nor does legislating the importance of Christmas make Americans good Christians. The importance of the day is not even the birth of Jesus but the profound message of love, goodwill and peace that he preached during his lifetime. And, mind you, his love and goodwill were unconditional.
There is also the question of how do we celebrate this event inclusively. How do we make non-Christians realize that this is the day of Love and Peace and not about being a Christian? There is no such thing as Christian Love or Christian Peace.