Under the category of "Things that make you say, hmmm..."
Have you ever noticed how many Christians get all offended that many merchants take "Christ out of Christmas" by using "X-mas?" Or that some big chain stores insist their employees say "Happy Holidays" and not "Merry Christmas?" Or do you really wish "Peace on earth, goodwill to men?"
Many, if not most of these Christians are non-Catholics who want the word "Christmas" used. Ironically, the actual name refers to the "Christ Mass" - a very "Catholic" meaning to the name itself! I have to wonder that as this is more widely known and recognized, will there be Protestant movements to stop calling it "Christmas" altogether? If they insist upon the literalness of "Christmas" then they are implicitly endorsing the First Mass of Christmas.
Getting offended over "Happy Holidays" is also unwarranted. The actual liturgical season when most are celebrating what they think is Christmas is Advent. All Christians should actually embrace that someone is wishing their "Holy Days" be "Happy." The Christmas Season does not actually begin until the First Mass of Christmas - the Christ Mass, typically conducted at midnight Christmas Eve into Christmas morning.
Now, for those offended by the "X" in "X-mas" - you could actually embrace that as well! The "X" is an ancient symbol from the Greek which means "Christ."
"Peace on earth, goodwill to men" is actually a mistranslation! It should read, "Peace on earth to men of good will." Yes, we all wish for peace on earth, but do we wish that for men of ill-will? Should they be at peace in their ill-will? No, but to those who are of good will, we most certainly could and should wish them peace and happiness.
Today is the 4th Day of Christmas - so MERRY CHRISTMAS! Peace to men of good will!