Start by listening to this Mark Sayers lecture from a conference in Melbourne a few years ago.
Sayers argues that one of the ways the discussion about Christianity and the west has gotten off track is that it’s not really reckoning with actual church history in a real way. The history of Christianity and church growth is one of regular booms and busts. Jacobs had an old TAC post about this in England. So we’re in a bust time now. But America has had other bust periods too.