I completely agree. The only reason grains and soy are more 'sustainable' at the moment is because we're spraying the planet over in petroleum-based fertilizer

I completely agree. The only reason grains and soy are more 'sustainable' at the moment is because we're spraying the planet over in petroleum-based fertilizers. These mono crops drive up insect populations that like to eat those crops, so they have to use oceans of pesticide. Grazing animals do seem like the better solution. They can eat natural grasses and foliage, no herbicides, pesticides, or fertilizers required.