So, why do people want to fight in the first place? Is any natural inclination all bad? If we level up in perspective from that of personal tragedy, is war an i

So, why do people want to fight in the first place? Is any natural inclination all bad? If we level up in perspective from that of personal tragedy, is war an important force of evolution and largely responsible for the place we are at now? I realize technology changes the equation. And human suffering and destruction are never pleasant. So hopefully we are wise enough to find other ways and I think we will eventually. But I think in order to do this, we have to honestly admit that war has had an important role in human relations and development and the some of the outcomes of war have been for the betterment of humanity.