At this moment in time >99% of humans are not at Malthusian limits and majority of wars of the past 100-200 years have been fought between societies not at Malthusian limits.
The simple story that wars are started by a small group of elite insiders driven by ideological commitments, perhaps fanned by larger nationalistic/jingoistic/militaristic/etc sentiments in the larger populace seems far more plausible.
At this moment in time >99% of humans are not at Malthusian limits and majority of wars of the past 100-200 years have been fought between societies not at Malthusian limits.
The simple story that wars are started by a small group of elite insiders driven by ideological commitments, perhaps fanned by larger nationalistic/jingoistic/militaristic/etc sentiments in the larger populace seems far more plausible.