Very good points, as a species that trauma probably pushed many to look to improve the situation. I think that we've now come to a point where we can hit the next level by working with what nature does so well rather than unnaturally. Through permaculture practices, aquaponics, indoor vertical farming, and distributed micro farms. There will be an abundance for all people. Check out the work of Geoff Lawton http://www.geofflawtononline.com/ He is Greening the Dessert with permaculture principles. If individuals begin to promote soil health through the use of biochar and sea minerals we can eliminate the need for fertilizers. Large agriculture is also becoming more automated and efficient.