Earlier quoted context omitted.
People are "programmed" by culture. It wasn't so many generations ago when people with similar genes as me (a Scandinavian) did organized clan warfare with slavery, murder, plunder and everything else we see as bad in today's Western world. But the people then were "loving fathers and sons" too, of course. Attitudes to things you/we deplore are trivially cultural. Your argument as a whole was a bit funny... You use p…
Your argument doesn't prove violence is cultural. Maybe Scandinavia is peaceful now because most of the people with violent genes left. You're descended from the guys who stayed, not from the ones who left to colonize Iceland, Greenland, Britain, Normandy, etc.
Please read some history. It was no better, it was just not internationally infamous clan societies for a while. Then we had violent national states (check e.g. Polish deluge or the 30 year war).