Interestingly, according to Ryan Burge (a social science professor who studies this stuff and posts at Graphs About Religion) the top reason why people de-church is because they moved and never bothered to find a new one.
The majority of Americans leaving the church do so for rather humdrum reasons, sociologist of religion Ryan Burge said during a recent episode of the “CBF Podcast.”
baptistnews.com
He is fascinating to listen to if you catch him on various podcasts. He was also a pastor at an American Baptist church that recently closed after having a tiny congregation that finally burned through their savings. He seems to think that perhaps in the 1960s and 1970s when civic religion was huge, it was just too socially costly to not be part of a church. So folks who did not really believe much may have been part of (for example) the local PCUSA church back then, but today people can just be a 'none' with no real consequences. Perhaps the decline in Christianity is simply revealing what has been there all along to some extent...
Robert P Jones at PRRI does some similar kinds of work. I am an engineer so always want to see the data
The 2023 PRRI Census of American Religion provides an updated analysis on religious trends in America, including new, comprehensive county-level estimates on religious affiliation and diversity in the…
www.prri.org
I wish he broke out the data better, but among white Christians in the US, it looks like there are roughly equal numbers of evangelicals, Catholics, and non-evangelical protestants. They are all declining. Again, I wish he showed plots including
all Christians...