If Christmas is a Christian holiday for you, go and enjoy your holiday.
If it is a secular holiday for you, go and enjoy your holiday.
For some atheists like me,  it is a time to enjoy the lights and the music and the food. 
Defiantly, I have learned to love Christmas, excluding the extreme marketing aspects. When I see those Christian absolutists, who say that Christianity is the one American religion, I shrug. Makes no sense to tell them of deism and the founding of America. 

Hugh Massengill, Eugene