Why limit the sword hypothesis to our ghetto gangs?
Much of the “Our God is better than your God” tribal warfare would back off if the modern weapons of war were gone.
Sure, there would be plenty of thumpin’ and slashin’ going on, yet the scope of our global cornucopia of violence would significantly diminish.
“I’m searching for a great warrior!”
“Hhmmnh…wars do not make men great…”