And neither is the Christmas tree.
In fact, Christmas is not a Christian festival.
It celebrates the birth of Saturn, who dies and is reborn every year -- thus the old man and the little baby costumes on New Year's Eve.
When the Christian missionaries were converting Europe, they found the people quite unwilling to give up their parties, so they tacked on Christian meanings to the existing festivals.
Another example is St.John's Day, which originally was Samhain (which, for some perverse reason, is not spelled the way it is pronounced -- it is "saw win"),the summer festival.
Easter celebrates the Babylonian fertility goddess Ishtar, who is also called Astarte -- in Egypt she is Isis. The bunny is not a Christian, and neither are the eggs.
So don't get your panties in a bunch about all those "Christian " holidays and symbols -- most of them are pagan, anyway.