I am all for trying to maximize technology advancement / alienating division of labor. (This is why I spend so much time on https://github.com/nixos/nixpkgs/ to untangle our great open source commons and make even in it's totality it graspable!), but "everyone gets to be a farmer too" is like the hardest-to-achieve form of that, and a failed attempt could easily wipe out what nature remains.

I would much prefer to abolish all non-highly-intense agriculture and try to return as much and to parkland as possible. IMO it's no coincidence California, Korea, and Japan are all prosperous. Mountains containing developing to smaller areas greatly improve things. We need the political will to do same thing in the flat areas by fiat.