Consider the Laestadians (look them up in Wikipedia if you haven’t heard of them). They tend to have lots of children; one TV program some years ago mentioned that families with 10 children are common among them.
Unless a lot of those children abandon (or at least modify) their parents’ faith, the future belongs to them and similar groups.
Alternatively, consider the various sects in history which have thought that the world was evil and therefore bringing children into it was doing them great harm. Needless to say, the majority of them seem to have died out...
Consider the Laestadians (look them up in Wikipedia if you haven’t heard of them). They tend to have lots of children; one TV program some years ago mentioned that families with 10 children are common among them.
Unless a lot of those children abandon (or at least modify) their parents’ faith, the future belongs to them and similar groups.
Religion can be a powerful fitness maximizer.
Alternatively, consider the various sects in history which have thought that the world was evil and therefore bringing children into it was doing them great harm. Needless to say, the majority of them seem to have died out...