Actually a great deal of Christian traditions and Catholic traditions (especially Catholic) come from pagan roots.
Ie. Christmas trees.
Everything most folks know about wicca comes from the movies. There are a lot of parallels between paganism and christianity because it was the best way to convert simple people back in the day. Early christian leaders manipulated their religion in order to make it more appealing to the pagans.
Yet, somehow, paganism is now less credible?