Use of Merry Christmas in holiday greetings

In recent years, I have noticed how folks tended to use the politically correct "Happy Holidays" as opposed to the traditional "Merry Christmas" in both verbal and written greetings. It is sad that such a happy and joyful term as "Merry Christmas" has fallen into the grips of political correctness. It has given me to joy this year to hear more of the traditional holiday greetings. I have made it a personal point to use "Merry Christmas" in my daily interactions. Let's bring back "Merry Christmas" and jettison the "Happy Holidays". Political correctness during the holidays? Bah, humbug!