BTW my foundation for anti-war views is that war is an act of volition.Extrapolating on your comparison of individuals to nations and ruminating on violence; neurotic individuals often have a tendency not to avoid fighting, even when the prospects for civility are almost overwhelming. Their volition is overcome by the defect of being neurotic.
The constructs of nationhood have made nations neurotic and their people neurotic in a way that promotes volition for war.How those constructs got put in to place I am not sure, part of the evolutionary process I guess.Borders are one of them. As the world becomes smaller the idea that we can throw off some of these troublesome arrangements has hope. I certainly don’t think the first round of “globalism” will be a success but maybe the third or fourth or fifth could. By the time it does there will be no borders. This may all be a bunch of malarkey, but worshipping past history, the idea of nations and ancient religions will never get us there. These things also subjugate everything else, even when we pretend they don’t as in these ecumenical,international worship meetings in the Washington Cathedral(or wherever they are held) .