Domesticated isn’t the same thing as non-violent or even ‘tame’ as the term is usually used. It doesn’t even mean civilised. Rottweilers are domesticated. A small pet dog ate half the face off its owner, while she was alive, in France when she collapsed at home and it got hungry, yet it was a normal domestic pet dog.

I would agree that communal group living as seen in many primates is a precursor to the sort of domestication we’re talking about here. It’s a first step on a long road.

Yes Genghis Khan was violent and brutal, but he was also an inspiring leader that built alliances and administered a vast empire. He ate his meals using utensils, at regular times of the day, was able to be cordial and open minded about strangers.

He was first and foremost extremely disciplined and self-controlled. He was able to be taught and trained as a child, learn rules and commands and was able to control his immediate biological needs and desires especially when under external discipline.

Even that isn’t the whole story though. Cows and pigs are domesticated and display all the adaptive characteristics that come with it.