But even there it falls apart, because if it had any merit then every country in the world would be North Korea. And even that wouldn't be enough, because even North Korea trades with China. The idea that the natural state of the world is total paranoia and the instant annihilation of every civilisation simply doesn't hold up. The realist's perspective of international relations actually serves to disprove; even when you begin from the presumption that their own survival is the primary goal of every civilisation, it can be observed that the optimal behaviours that arise from that goal are cooperative, not defensive.