If you're looking for a switch that turns a human being functioning normally in society to a violent thug then you're going to be disappointed. However the point the woman raises is a good one - 30-40 years ago almost everyone went to Church where they received moral guidance in addition to what they receive from their parents.
Now, hardly anyone goes - so where do people get their moral guidance from now apart from their parents? And if their parents aren't doing their job properly what fills the moral vacuum?
Never been to church, never been religious, never been Christened either for that matter.
My parents aren't religious.
But funnily enough I was raised well and I've never been a criminal. I know the difference between right and wrong. It has nothing to do with being a Christian.