There is an enormous body of law in the US that incentivizes a top-down corporate business structure and disincentives a co-op business structure.
Of course, co-ops aren't common in the US, but they do exist (like REI) so I'm just curious about the details of this criticism of the legal landscape in the US but without further information am unable to research the claim.
Not the food and vegetables and fruits we consume. Hogs and corn and sugar beets and canola and soy are subsidized.
So... human nature. Human nature is stopping people from doing that.