> Most farming in the US is done by the same kind of bigcorp groups that do everything else, with a tiny number of well-educated employees mixed with mass seasonal agricultural labor (who usually aren't even citizens in the first place).

It depends on how you measure "most" but a lot of food is produced on farms owned by large agriculture companies. The food is grown by farmers who live in the rural areas. The farming itself doesn't occur in a vacuum, the entire economy of the rural area is mostly built around supporting the farming activity.

> tiny number of well-educated employees

Some have a b.s. in agriculture. I'm not sure what you mean by "tiny number" except that there are a lot of non-farmers living like sardines in urban areas.

> It happens in rural locations because that's where land is cheap, not because it's actually being primarily operated by some idealized urban farmer.

I'm not sure this is relevant, the cities where people live on welfare or develop marketing programs from cubicles are dependent on people in rural areas growing their food.