I see what the you're problem is now. So you're confusing evolution of social structure with just plain mutation.
Mutation is not where the line is drawn commonly when talking of evolution. They probably envision something mutating to change the various behaviors.
The social structure of humans is entirely conceptual and unique to humans. It was an evolved behavior because we as a species are poorly equipped to handle the wild (fragile skin, poor immune systems, no defensive mechanism, low offensive capability, the list goes on) we discovered early on thanks to our increased cognition that tools help along with strong social bonds.
You now blame social everything on evolution, and blame me for noticing that you guys do that a lot? War is social, no?
We're similar to ants in that regard that we established hierarchies in order to further our societies and survival.
Hard to say whether spirits established some orders along the line also. By the way you think ants establish the order of the colonies? It seems that they march to the beat of a drum somewhere, somehow, that involves more than a few ants organizing things over a drink.
And similar forms of that hierarchal structure today in the form of organized government and presidents etc.
We do not know that much about what and who and how some presidents get where they are, or what agenda may be in play.
But a social structure evolves at the behest of the society that formed it.
Sometimes it seems it develops despite the behest of people in a society actually.
It doesn't just change we have to make it change. It's human made, and we have changed it alot since it's beginning.
Pollyanna dreaming. In many cases people probably need to change themselves to minimize the changes of society. There is a limit to what changes come from people, and in particular, the masses.
But tribalism and war are certain constructs as well that are so rooted in our society. We have people who want to hurt society at large and conflict is usually the only way to subdue them.
Hitler subdued a lot of folks as did Alexander, Obama, and others. The question arises who was doing harm to whom?
People who believe they can cut against the grain and want to establish a new system to aggressively replace a proven system are very dangerous and cause chaos amongst order.
People who conform to evil are a danger to others also.
The mutation you're seeking isn't natural and most likely coming. We as a collective world would have to all agree on not killing or harming but there will always be someone who lusts power and will buck the system. Boko Haram is the perfect example.
I do not think that people can agree to not sin, therefore not war. Poverty and war are here as a result of sin, and cannot be wished away or voted away.
In the days of Job, Satan inspired the Sabians to do stuff. Bad stuff. He still has a lot of sway in the lives of particularly vile men.
You see evolution is not to blame.