I've never been a Christian but there are plenty of ex-Christians who understand very well the intricacies that such a life-long commitment entails. They have written many harsh and even brutal criticisms of the faith they once held. But it is a fallacy to think that just because someone isn't a member of a cult that they cannot possibly understand it. It's always the people inside the cult, the members of the religion themselves who don't realize their beliefs are false. Those of us on the outside, those of us not beholding to the dogma of the cult are the ones who can see the truth.