In their new book “The Great Dechurching: Who’s Leaving, Why Are They Going and What Will It Take to Bring Them Back?” Jim Davis argues that the most dramatic change may be in regular attendance at houses of worship. “We are currently in the middle of the largest and fastest religious shift in the history of our country,” he postulates, because “
about 15 percent of American adults living today (around 40 million people) have effectively stopped going to church, and most of this dechurching has happened in the past 25 years.”
https://www.nytimes.com/2023/06/21/opinion/religion-dechurching.html