And if the price that those people can afford is $0, because ClaudeGPTPilot MegaAGI took all their jobs? What then?

There is a price below which no farmer is going to sell, regardless of whether they have another buyer.

What you're saying effectively amounts to "come on, there's no way they'd actually let people starve in the streets! That's something that could never happen these days."

Think about whether there might be other things that "could never happen these days" that are happening right now, in various places in America.

If we're talking about huge groups, like thousands, of people having no money for food, it would behoove the government to pay for that food, just to avoid a revolt. Just as a matter of self-preservation.