In reality, middle America probably grows an entire magnitude more food calories than california, and most of that is inefficiently turned into beef, or ethanol for cars. America does not need to be worried about starving. We literally throw away like a quarter of the food we purchase, and for incredibly stupid reasons like people swallowing the "Best By" dates as gospel and refusing to eat food with a bruise. This doesn't even consider the massive amount of farmland that we used to use in plenty of rural states across the nation that just aren't as profitable as the factory farms that own the markets nowadays. My state used to produce mountains of potatoes for the entire country but got outcompeted by Idaho and now is stuck growing niche crops and small batches of broccoli for local consumption.