> Yes, but the AI that is metaphor is comparing to does not create more food.

Mostly because food is incredibly cheap, so it's not the main focus of present-day economies. AI does however help provide many basic services that improve quality of life. The most natural and most cost-effective use of AI is arguably in helping answer simple questions, not really in cranking out tokens to somehow help write complex software. And other service work is perhaps in the middle of this range.