It is no secret and should be a well established fact by now if you follow Truth In Our Time that Jews HATE Jesus Christ. They do anything in their power to detract from him at every available point. Something I wasn't aware of until recently was the amount of Christmas music that was written by Jews. The partial list can be found here.
On the outside this may seem innocent, however anyone who has studied the Jews and their methods know otherwise. We are, and I guess technically always have been, engaged in a War of Ideas. This War is waged on all fronts, language being a primary target of the enemy. If they can mold our language even a small amount we will have no means in which to fight them.
To keep on topic however Jews detest Christ and they detest the fact that he has been a dominate figure the world around since the time of his birth. So what better way to make everyone forget about him than to quit mentioning his name at CHRISTmas time. You now have X-Mas and a plethora of Christmas tunes that have nothing to do with Christ himself. It is very sad and quite dangerous when you stop and think about it. This may not effect you because you most likely were raised in a different time, but your kids who grow up in Govenment run endoctrination centers will never hear mention of Christ. Score one for the "chosen" people.