we used to be much more like bonobos actually... at least sexually.

and last time i checked we aren't predators, wrong teeth.

anyways, i can see that there could have been fights. but killing other humans in wars became a thing only much much later, when game wouldnt be so readily available, the first large settlements formed and already made some people leave them to find better luck elsewhere.

the objectification necessary to enslave other humans came pretty much along with it. after all, a dead enemy is just a thing. so a living enemy could also be just a thing...

i wasnt trying to romanticize the era of hunter gatherers, but while rome might have been quite moderate at that time, practically everyone else were already patriachial to a point where most women would be second class citizens with little economic freedom, or economically free but sworn to celibacy, and their profits would return to their fathers