Those are interesting scenarios. Gore Vidal wrote an extended essay on how AC empowered year-round occupancy of D.C., turning the sultry, largely abandoned summer into a cool oasis where the accursed, now year-round federal bureaucracy battened
I didn't believe that story either.
There just weren't that many hippies. There were many sympathizers, but they partied a bit, got laid, and moved on to conventional lives. There may have been an influx of disillusioned boomers into churches, but since religious affiliation and congregations have generally dwindled since then, I dont think boomers supercharged the megachurches.
Megachurches have mushroomed in recent decades, long after the hippie era. Most hippies, from affluent suburban families, simply went back to school. Working class kids went to work or war, and fundamentalist megachurches are primarily though not exclusively working class, their financial and political base. Recently, I suspect that the influx of more prosperous whites has empowered fundy growth -- like Trumpian fascism --far more.
More to the point, the notion of enormous numbers of burned out space pilots, like the psycho killer vet, is a literary and cinematic myth. Most of us turned out just fine: as recent research into treating depression suggests, we may well have benefited from our curiousity.
Some Jews for Jesus, Hare Krishmas, Catholics, Methodists, and many others, even a few addled by drugs, became fundy Christians but a film documentary assertion that sounded reasonable to someone with a clear disdain for hippies won't conjure a horde that didn't exist. I'd enjoy seeing evidence.
With both respect and affection, In a different but congruent circumstance, I'd say stop watching Fox news.
If you'd like to identify a demographic most responsible for the social and political power of fundamentalists throughout the decades, check out white dudes, full stop.
Edited by Omnivorous, : No reason given.
"If you can keep your head while those around you are losing theirs, you can collect a lot of heads."
Homo sum, humani nihil a me alienum puto. -Terence