"killing each other over whose god is correct" is a profound misunderstanding of humanity. That's not why humans kill each other now, or in any time in history. It is and always has been simple & rational game theory: fear of the other tribe killing you for your resources, or just simply because they're afraid you might kill them for _their_ resources.
For example, this is (one of) the core reasons of why peace in Israel/Palestine is so hard (each side fears accepting sovereignty of the other side means they will continue to encroach and wipe them out).
Humans are pretty clever and ingenious at all levels
For example, this is (one of) the core reasons of why peace in Israel/Palestine is so hard (each side fears accepting sovereignty of the other side means they will continue to encroach and wipe them out).
Humans are pretty clever and ingenious at all levels