I think I need to be clear here. Whatever is behind religion was most certainly created by man. Whether you can boil it down to a single person is debatable, and you almost certainly cannot identify that person. But it was certainly people who came up with the gods.
I've often said that if people did not come up with gods, then the same gods, actually existing, would have had the power to make themselves known to multiple groups of people. Europeans would have landed in the New World and told the natives here about Jesus, and the natives would have said, Jesus? We know him. Son of God, raised by a carpenter. We know all about Jesus. Crucified, right? Yeah. You mean you've been to Israel? WOW! What's that like?
No two independent societies have ever concocted the same God with the same name and the same set of rules and worship requirements/preferences.
But archetypes? Archetypes are elements that good stories have in common. People don't "come up with them in the explicit sense. They come up with stories.