This is the old theory that the nobility domesticated peasants while the peasants were domesticating animals.
In my reading of the TFA, it's not. It's the idea that less aggressive individual were naturally selected, partly via sexual selection of the males by the females, partly by pruning of the most violent individuals by the whole group. Nothing to do with the domestication of one group by another.
Female selection didn't occur in human society. Females didn't get to choose who they married. Rather it was the men who decided which females marry which male.
Also, there is far less diversity in the Y chromosome than the X. The best possible explanation is during ancient tribal war, the winning side killed all the males of the losing tribe and bred with the females.
Also, we have evidence that the greatest genetic winners are warriors/leaders like genghis khan and charlemagne.
Historical, genetic and biological evidence debunks the female selection theory.
As for the "pruning of violent individuals by the whole group". That too is nonsense. It is the most violent group who establishes order. Law and order isn't anything the group decided on. Rather law and order is something a small group of violent elites forced on the masses.
Think about the US. The group didn't vote on independence. Rather it was a small group of violent elites. During the revolution, at most 30% of the colonial population supported independence.
Think about the current world order ( aka international order ). Nobody voted for it. It was forced on the world by 2 world wars, 1 cold war and 200 million dead people.
Or look at china. Tens of millions of people died in order for order to be enforced on that gigantic nation.
The idea that female selection or pruning of violent individuals is how humans tamed themselves simply isn't true. Also, the idea that humans tamed themselves is simply a lie as well. We were tamed through law, order and lots of violence. Also, full bellies and distractions ( bread and circuses ) helped.