@Olivier5,
You are yet to explain why social constrains are more important then genetic constrains.
Or better said, why causality on which relations are founded is more important reporting a social enviroment then reporting genetic relations expressed in the individual.
Or further still why there should be a causal nexus at all either way.
As it can be argued things just are what they are. Where in the hell is the construction if there is no nature to anything ? When nothing has identity, when nothing has properties what is there to be build upon ?...
Ego is said to be a construction, the result of social conditioning, "languaging" etc...and yet no one explains what is the foundation of the social itself, so that something like egos can emerge from its workings operating upon something which is said to be nothing, to not exist. The fact of the matter is that there cannot be conditioning without something to be conditioned in the first place. The subject ego cannot arise purely from social conditioning without the subject having a ego potential per se in the first place. The subject is in itself a unitary system, awareness or lack of awareness on egos aside. Ego even if partially socially conditioned is just yet another expression of this unity. And for that matter societies themselves form unites which differ from each other. Colective memory is their ego.
Agreement happens because it can happen, its mathematically settled, and not because agents decide to agree by their own volition. Volition must always express the agents nature which could not be chosen by the agents themselves.
In fact Nature as a whole is not something that can be chosen. It simply it is.