Ok, you can't disprove or prove Unicorns/Fairys/Leprechauns/Santa, so im assuming you believe in all these things? Since you cannot disprove them. The lack of proof, and when talking about God, the complete lack of credible proof, is a pretty good indication that it is a pile of bullshit.
And yes I celebrate Christmas, but it is hardly a religious celebration anymore, I want my presents!