Violence; does it work?

[Touchstone]

If violence was completely innate, we would not have wholly peaceful societies in existence.

http://peacefulsocieties.org/Society/Nubians.html

Do you not even read the stuff you cite?

"Nubians don't reveal serious problems to outsiders, particularly to authorities such as the Egyptian police, since their best chance for survival as a village is to be ignored by the authorities. A safety valve that has released tensions has been the fact that many men could go off to a big city, usually Cairo, to work and find release for their energies, free of the traditional, conservative restrictions of the village environment. "

That they "don't reveal" serious problems means that they do have serious problems.

That they need a safety valve means that their "peaceful society" is non-sustainable in it's own right.

ie. your reference supports exactly the opposite of what you claim it supports.