If I ever had a dictatorship, first thing I would do is end corn subsidies. The farmers want conservative politics? They can get that.
This would amount to a regressive benefit that hurts poorer Americans, as it would only exacerbate the problem of poorer Americans spending a larger percentage of their income on groceries.
Keep the farm subsidies that benefit the GOP farmers and in turn benefit low income Democrat voters. win win.
The left-wing/liberaltarian argument against corn subsidies is that they are used to grow excess corn that is used to produce high fructose corn syrup (HFCS), which is added to many cheap processed foods and is bad for you if you eat too much of it (like if you are lower income and live in a food desert). HFCS has been linked to higher rates of diabetes and obesity, causing worse health outcomes and a public health burden.