It's not cheaper or more efficient compared to large scale farming

This professor emeritus disagrees.

To begin with, it takes three acres of land for the industrial food system to feed the average American for a year, compared to maybe 5% of that area—or even much less—to feed a person for a year on a balanced diet of garden vegetables. So how is that three acres more efficient?

https://www.unsustainablemagazine.com/home-gardens-vs-farms-efficiency/