A: Christmas is and has been the celebration of the birth of Christ. No matter that it might have originally been a pagan festival, what it has become is what is important to the majority.
B: If you choose not to accept it as such then forgo it being a holiday to enjoy and go to work (if you do work) and do not infringe upon the rights and beliefs of those that do recognize it. I am sick and tired of having to be concerned about someone else's feelings because of what I and 75% or more people believe. You don't like it, change the channel or do not look or participate.