Do you think "Yes, Virginia, there is a Santa Claus" story is too Christian or politically incorrect?

I'm getting my seasonal decorations for my work space ready for next month. I'm not setting it up in a religious manner. Rather along the lines of a festive feel - stuff like a cute white little tree, candy canes and holly branches. One of the things I came across was and was going to put up was the "Yes Virginia, there is a Santa Clause" story. My supervisor has told me that this could be considered inappropriate since it is religious. I say "BUNK". To me this has less to do with religion and is more about hope and human spirit. What do you think.