Jesus wasn’t even able to fix his own society. It wasn’t until centuries after he was last seen that Roman Christians were finally able to displace the dominant Roman religion.
What Jesus managed to do was to plant a seed just well enough that it would become such a mighty tree that the rest of the world wanted to protect it. This tree, mighty as it was, wasn’t actually a physical thing, rather concepts, ideas, that lived in the minds of people. Easily and conveniently forgotten when it suits anyone’s purposes.
What would Jesus do if he were to come back? He already planted the seed and it already grew into the tree, and the tree lives on in the hearts and minds of many. The author of the Book of Revelation insisted that Jesus would return and reveal divine mysteries, this is what the word “apocalypse” meant in Koine Greek.
The abject revelation of divine mysteries, as described in the final canonized work of the New Testament, wouldn’t fix society, it would destroy it. One does not need to look very far these days to see examples of social destruction. One little virus has shut down vast swaths of our economy. When we emerge from this hell, life as we know it will be vastly different.
And that’s just pestilence. Creative destruction is the domain of the gods. One can imagine a platoon of lesser deities set loose onto the world, sowing chaos and discord, their leashes held by stern-faced elder gods who stop them from going too far. Drastic measures for unsalvageable times.
No, the revelation of divine mystery only means one thing. It’s time to wrap things up. Our Earth is living on borrowed time, always has been. Plant photosynthesis will become impossible due to falling CO2 levels perhaps half a billion years from now. Humans will find it increasingly difficult to live, and we are busy making it even worse on ourselves by exacerbating climate change.
If Jesus is going to come back, he’d best do it soon while there are still people around to remember Him.