Kudos though to Big Robotry. Ever since the combine, men have been engineering better and better ways to automate harvests. People will still be needed to run and service the machines, though. It will never be a people-free industry. Nature is too gnarly for that.
Soylent Green production will be entirely automated.
We on the right had better figure out how to manage the transition to a society in which there are very few jobs and great abundance, because the left already has an idea, and it looks an awful lot like the worst aspects of Brave New World, 1984, and The Hunger Games all rolled into one.