Ah, yeah, I conflated the theory with the thing itself.
Converging philosophy and science alone don’t suggest that but together with recent polls that say the most secular countries in the world report greater happiness and less crime than the more religious ones does. And philosophy and science have been converging since Wilhelm Wundt set up psychology as a science, it’s only more recently that neurology has begun to join through Harris.
Recent polls also show a correlation between poverty and religion. You could be interpreting yours in the opposite direction: Does secularism cause less crime and more happiness, or does religion occur when there are more problems? Besides, other data shows an increase in religious affilation, and that periods of stronger or weaker faith in society happen in cycles. Psychology is not morality, and it isn’t philosophy. They are all asking different questions to which secularism does not provide good answers.