[yorwba]

I don't think the poll supports the idea of spiritual morphing. The 30% of agnostics is not much different from the population average of 27% and less than catholics at 31%, while atheists believe in astrology less (10%) than any of the other groups.

If abandoning religious beliefs of yesteryear really just morphed them into others like astrology, those new beliefs should be much more common among people who've abandoned the old.

I think a better explanation of the data is that some people have strong opinions on spirituality, ranging from dismissing it all to holding up some particular scripture as the single source of truth, which then informs their stance on astrology, while others just go with whatever, so they're distributed across denominations at roughly the base rate and believe in astrology at roughly the base rate.