>Farming has to scale down.
Then how are you going to feed everyone?
By the time I left the farm for college, the productivity of the American farmer had increased by almost two orders of magnitude for the 50 years beginning when my grandfather homesteaded in 1911. Improvements in technology, from using tractors instead of horses, modern cultivating techniques (strip farming, idle land cultivating), fertilizer increased yields and cut prices substantially.
When I was 3, my dad and uncle, who were partners in the farm, purchased a tractor for the equivalent of 1200 bushels of wheat. 15 years later, that same tractor would have cost 9500 bushels of wheat.
It isn't so simple that giant companies, whether it be oil, big ag, energy want to make profits. Clearly they do. But when we all insist on buying and driving cars and complain when gasoline prices are too high, there are overall economic forces at work that tend to create opportunities of scale, resulting in Big Ag and Big Energy. The consumer and the hungry mouths are all part of the equation.