I don’t think so. We are aggressive, as @basstrom188 says, but it seems like there is a good reason for it. It’s good old Darwin’s “survival of the fittest.” We are constantly competing to be more successful. In this competition one would expect the fittest survivors to change from time to time as external circumstances change.
For example, a virus could come along that kills 90% of people with certain genetic similarities. Those who had a different make-up would survive. That’s war against a disease, but diseases have played a huge role in human conflicts.
Now, it could be that cooperative societies have an evolutionary advantage. We have a worldwide experiment/competition with various forms of cooperation going on right now. Some have been pretty dysfunctional—look at the middle east. Other people have learned from their experience with genocidal conflicts (Ireland, Rwanda, Liberia).
Some of the difference between these different kinds of cooperative societies are fairly subtle. We’ve got the US which tries to have a balance between capitalism and socialism that is more capitalistic than that of many nations in Europe. Who is doing better? From what I’ve heard, Europe is gaining an edge.
Europe is also working to build greater cooperation amongst it’s nations. Again, they do this as an evolutionary adaptation to enhance their survivability in competition with the rest of world.
NAFTA brings the US, Mexico and Canada closer. There are organizations in Asia and SE Asia and even Africa with similar goals.
Clearly cooperation offers a competitive advantage. The big question, for me, is how far can this cooperation go? Could we make it to the point where we are all cooperating together—- all 8 billion of us—or however many there are at that time?
I think it will become necessary to have such global cooperation. I think it will also become necessary to distribute education, medical care and even resources more equitably around the world. However, this can not happen using a central authority. Worldwide cooperation and redistribution of worldwide resources can only work if every individual (or maybe 60% of them) perceives this policy as being to their advantage.
The problem with worldwide cooperation is that there are so many competing ways to do it. There is the Muslim way, the Christian way, the UN way, the American way, The Chinese way and on and on. Some of these ways believe they have the only possible route to achieve world cooperation. Unlike me, some of them believe it can be done through a central authority.
I think we will need to worldwide cooperation—peace? But I’m not sure cooperation can stay together without competition.