What if you revert to caveman savage? What if we’ll get back to superstitious human sacrifice?
Moses did an incredible feat and if you read carefully you’ll see most of what dooms the biblical texts are in fact ways to handle a hoard of starving humans.
All the civilising heroes of mankind has, first of all, before anything: identities and egos. It might be that this reverting will not be as romantic as we’d like, without the background story for our mind to weave sanity upon.