Institutional religion, especially churches, are rapidly declining in America and there is no lack for explanations from all sides -religious and secular explanations.
Yet, any explanation for why religions are declining must also be able to explain why virtually every secular social institution, like the boy scouts, the free masons, and the NAACP, are also declining in membership.
It's not just churches, people just don't know how to be a part of a community anymore.
@RL_Dane My personal pet theory: Television and in-home on-demand entertainment.
Being part of a community takes a little bit of work and risk. Watching television provides parasocial relationships that require no work and no risk. This encourages people to just forgo the work and risk of being involved in a community and just stay home and watch TV.
A Fediverse instance for people interested in cooperative and collective projects.