Some clues :
Douglas P. Fry : Pacified Past
Azar Gat : Warfare as an Ancient Feature
Robert L. Carneiro : Complexity and State Formation
Was the 20th century one of the most violent in human history ? (with two world wars and numerous other conflicts) ?
i also like the documentary series : “The Ascent of man” from the BBC in 1973 by Jacob Bronowski.
But our weapons now can kill millions in an instant, and millions more subsequently. Missiles and such a regularly guided by Playstation controllers thousands of miles away.
Troy may have had a few thousand to massacre. We were more violent, but at least we actually had to face the violence we committed.
Edit: I did not mean this as an argument against what you shared. I can see why it might be read as such. I only meant to add another aspect to the conversation.