Christmas Tree or Holiday Tree?

Tis the season where cities across the country put up a symbol of the Christmas season and draw a lot of controversy.  We're talking about the tree.  Portland has one every year in Pioneer Courthouse Square.  This year, they are officially calling it a Christmas tree.  The lighting ceremony is set for the day after Thanksgiving.  Today in Gresham, city crews started stringing lights on it's Christmas tree.  Again, that wording is from an official press release.  But in Beaverton, it's simply called the Tree Lighting Ceremony and Holiday Open House.  What do you think about this?  Some people get very upset when it's called a Holiday Tree, they think it is too politically correct.  What do you call the tree?  What if you don't celebrate Christmas?  According to Wikipedia, the Christmas tree is also known as a Yule tree.  Maybe we should go back to using that and avoid this whole mess together.
--Lacey