Embittered ex-Catholics, or non-Catholics who were subjected to Catholic schooling, seem to be the most vocal opponents of Christianity in particular and organized religion in general. God only knows what they do to them in there - given their vehemence I have to picture manacles, firepots, and lash-wielding inquisitors.

This is as opposed to embittered ex-Baptists, who become Wiccans.

TWAJS