There's nothing morally wrong with it, but our current government systems aren't built for a few corporate entites (because there's no way this is downscalable to small family farms) essentially owning both entire states and the majority of the nation's food production. That's one merecenary army away from corporate nation-states
So you fix the government. Fully automated farming seems an inevitability at this point, and the materials costs to build denser instead of wider will be prohibitve so long as we have perfectly arable land to throw combines at.
It sure can feel like you have to design your economy, culture, and society around an unchanging, unaffable government, but none of those are really receptive to bending around something as transient as the ruling class of a given age.
