Say...or don't say...  We have the right to both.  I say "Merry Christmas".  You can say "Happy Holidays" if that makes you feel better.  I think it is wrong to be told by anyone what they have to believe or say.  

It's Christmas for goodness sake.  It's about Peace on Earth, and Good Will Towards Men (yes I adopted the dated term of "men" as an inclusive...give me  a break I'm an old man).

Merry Christmas everyone!