The other day I was talking to a friend who said that her daughter was married to a Muslim man who refused to celebrate Christmas, even though she (the daughter) participated in various Muslim holy days. She (the friend, mother of aforesaid daughter) said it was kind of a damper on Christmas celebrations in her family.
Personally, I'm with the Muslim husband/son-in-law. I don't like it and would rather not celebrate it. I'm in survival mode now, just trying to get through it.