Capo, I don't understand what the theaters being open has to do with Christianity. I have lots of friends who are Jewish. Are they anti-Christian if they want to go to a movie on Christmas?? That's as silly as me being accused of anti-semitism if I go to a movie on Passover. It's not MY holiday, just as Christmas isn't a holiday for someone who isn't a Christian.

As for "celebrating" the holiday if you're an atheist, I've said in the past that it's a lie. I have a friend who is Jewish and she tells me that she "loves celebrating Christmas". I told her that she doesn't. Christmas, by definition, is the celebration of Jesus Christ, the Son of God. If you don't believe that, you can't celebrate Christmas.

You can celebrate lights and trees and presents. It's not the same.