I've already discussed why Christmas is a champion of secular, materialist values. Here's what the Bible has to say about Christmas :
For the customs of the peoples are worthless; they cut a tree out of the forest, and a craftsman shapes it with his chisel. They adorn it with silver and gold; they fasten it with hammer and nails so it will not totter.
Only acknowledge your guilt— you have rebelled against the LORD your God, you have scattered your favors to foreign gods under every spreading tree, and have not obeyed me,' " declares the LORD.
The Bible has been more and more left behind throughout the centuries, because social pressure is what drives religious morality, not doctrine. What we now call "Christian morality" is the result of thousands of years of relativism, of constant changing and molding of the religion to adapt to its varied environments.
The fact that Christians are now trying to co-opt Christmas - which is the fullest expression of material, secular values - demonstrates that they have lost the moral battle, and are desperately trying to beat a retreat.
So the good news is that, we've won. The bad news is, the Christians' constant War against Christmas has been so successful that it has hidden that fact.
Merry Christmas !