I agree with the thrust of that. Indeed, there's some overlap between what you're saying and lots of my other writings. I've written on the importance of religion's evolution (from animism and polytheism to monotheism, for instance), and I've also written that theism is indeed based on psychedelic experiences (some links below). I don't go as far as meme theory, though, since that seems to me scientistic. Cultures spread in sociological terms, not strictly biological ones.

I also explore Nietzsche's suggestion that we could use a viable, honourable atheistic religion to deal with existential horror.

https://medium.com/gods-funeral/the-telltale-evolution-of-our-ideas-of-god-e30f6d5a7d4f?sk=d2a449eed7aeac742b17eccd3c1b2c96

https://medium.com/interfaith-now/why-the-evolution-of-religions-is-a-problem-d9da4e82c7d8?sk=d28d2acb61803a5ce04e5a34047b9d80

https://medium.com/interfaith-now/how-religions-suppress-spiritual-epiphanies-a0d0a5366549?sk=7dbe737309b1a554017bb80cfd9918b2

https://medium.com/grim-tidings/psychedelics-forgotten-cornerstones-of-the-human-condition-143f8bfe29ba?sk=20e2a28fa52d58d53999caa758abd84b