@Pemerson,
I didn't call you any names, and in fact made it clear that i was pointing out that i didn't consider you a bigot, but rather that you were peddling a bigoted story. You continue to demonstrate your ignorance, however. The Cathars certainly did consider themselves Christians, and that you did not understand what you read is not evidence that they didn't.
You also seem to c0ntinue to see the Greeks as some monolithic society--in fact, they were made up of literally dozens of city states with a variety of practices geographically, and over the course of centuries, a variety of practices. Public displays of piety were very much a part of their religious practice, and there were some times when public piety was enforced in some place, but by no means at all times and in all places. They routinely gathered in public places, called temples, to display their piety, and to rehearse the legends basic to their theology. In particular, Pythagoras and his followers espoused religious beliefs (principally, the transmigration of souls) which were not common throughout the Greek world, or the classical era (which lasted four centuries, at the least), and insisted upon a public piety not enforced in parts of the Greek world of their day.
Pointing out that you are peddling a bigoted picture of the Catholics by your insistence upon one example of cynically, politically motivated crime is not the same as calling people names. But if you want to get your back up and take offense, help yourself.
You still have not addressed the incredible stupidity of saying that the first Christians were all killed, and then dragging in the Cathars when challenged on the claim.
You have also contributed nothing to a discussion of the experience of being an atheist--about which i suspect you know as little as you do about history.