I would actually bust a gut if American protestantism actually lead to a re-decentralized interpretation of all the dumb shit catholics have spent the past 2 millenia fighting to centralize.
LETS GO CATHARISM! LETS GO MANICHAEISM! LETS GO OPHITES SECTARIANISM!
I would say you are right to an extent, that access to information and the increasingly secular society is more and more out of step with conservative Christian ideology.
But, it’s also true that the progressive Episcopalian and Congregationalists are doing terrible, and are basically moribund. It’s also I think true that Gen Z is actually more spiritual or whatever then millennials, but a lot of it is going into less traditional forms of religion. There are more people practicing witchcraft than there are Episcopalians in the US. So I think this actually has more to do with capitalist forces that promote social alienation, and which are naturally at odds with the structured community organized religion has.