This was a good book that I heard recommended by Trent Horn. The big finding about dads was covered in his video, but what he didn't mention was in some ways more interesting, and also related to why conservatives lose at everything.
Hidden in this book, and ignored, is - as it turns out - another book: Science Politics and Gnosticism. It's not that the "nones" are actually "nones" it's that they're being scraped from traditional belief systems into libertine scientism. The right ignores this, and allows the category game to go on without issue.
The "nones" are falling off a gnostic assembly line, and everyone just pretends it's a bottom up phenomenon with nobody behind it, while also asserting it isn't of a religious nature. The regime learned from the failure of "transcendental meditation", and now reclasses everything as "science" to avoid muh Constitution's restrictions.
Read Orthodoxy and the Religion of the Future