I don't know about the current landscape, as it has been years since I've lived in the states, let alone mingled with farmers in the US, but at one point, they would pay farmers to allow a field to be unplanted. I find this to be a viable option when mixed with the above and the farmers I knew didn't complain either.
*Corn and soybeans are generally grown together, generally (but not always) in alternating years. Corn tends to deplete nutrients in soil, soy puts them back.
So what you’re saying is that the market doesn’t work?
I definitely do not back unregulated markets, and in general, do not think markets for food work. It isn't just food, but other things that are general necessities for the modern times. Utilities, roads, and medical care are other examples.
I don't think anyone arguing that subsidies in general are bad, just that subsidising corn is bad...
I have seen farms near me do Corn, Corn, Corn, Soy, Corn based on whatever they think will be most profitable.
This amount of corn is simply not needed and it never was. It only exists because of the subsidies. So, maybe grow stuff that is not contributing to destroying our planet and is actually worth something without a lot of subsidies. Organic farming seems pretty lucrative lately. Iowa has plenty of that happening already. There are plenty of things farmers can do that are actually needed that are much less harmful.
It doesn't have to be some extreme shut down, it can be a transition to something better for society.
The Dutch government is actually paying farmers to stop farming. Nitrogen emissions are a big problem in densely populated areas and cattle farming is a known big contributor to that. So, they are paying farmers to get out of the business of converting subsidies into manure. The main point is not to keep them farming but to stop them from doing harmful things. If they can farm other things in a less harmful way; great. But otherwise, things like forests, nature reserves, etc. are also valuable to have. Nothing wrong with subsidizing farmers to create those.
And "better for society" is... well, not a given. I don't know enough about farming to know what sorts of beneficial crops can be grown where corn/soybeans grow well and I'm not optimistic enough to think we won't just use the "new and improved" crop in much of the same abusive ways that we use the corn crops. I'm going to guess that we could make animal feed for confinement farming out of something that isn't corn We could probably make a sweet syrup out of it, too, and I'm guessing the main benefit to people is that they've made corn syrup the absolute villian and swept away nuance surrounding it, and would welcome the new replacement without much though.
We just need society to be a bit better, I suppose. Quit confinement farming livestock and have better animal welfare laws, for example. Make healthy eating very cheap (and easy with premade food too), have a sugar tax of sorts and food laws to keep sugar out of unexpected places and reduce sugar some other context. Oh, and probably expand public transport exponentially. Feed, corn syrup, and biofuel dependence should drop.
So once we've put all the farmers out of work and declared success, what do you suggest they do that is "more productive"? Should they lease their corn fields to crypto bros?