It’s counter-intuitive, but food causes people, not the other way around!
This is a basic ecological principle. Whenever a population of organisms has an excess of trophic resource, the population increases. Yet humans seem to think they are not subject to this ecological principle!
Of course, no one is willing to say, "Let’s starve people in order to reduce population." And the much-vaunted "demographic transition" seems to show that humans can behave differently, but that is corrupted by the large amount of fossil sunlight we have available. Give a village an electric water pump, and the women won’t have to breed little water carriers.
But this excess of energy can’t go on. I don’t have a solution — problems have "solutions," but resource depletion is a dilemma—it has no solution, only coping strategies.