Many people in the world today are not starving because there is an inherent inability to produce food they are starving because they are caught in the middle of political fights and blockades that have been used as weapons.
Agriculture is now a motorized food industry the same thing in its essence as the production of corpses in the gas chambers and the extermination camps the same thing as blockades and the reduction of countries to famine the same thing as the manufacture of hydrogen bombs.
I do not want to go into its physical reasons: the construction of the human body is different from that of carnivorous animals. But man's intelligence is such that it can be utilised to defend any-thing he does whether right or wrong.