Well well. Your “#2 yellow corn isn’t used for human food anyway” is not 0% but 10-12%.
I suspect that even that number is just direct consumption, not indirect.
For example, if any of it is used for feedstock, that is for human consumption as well, isn’t it?
We are also talking about humans in a worldwide sense, not just humans here in US.
The humans outside the US are the ones most susceptible to starvation and in need of food, regardless of whether it meets all the specs the USDA places on us for consumption here.
You’re missing the point that the principal corn by-product of ethanol, distillers dried grains, is a very efficient protein feed for animals while raw corn is decidedly not. So the question is whether these poor starving masses that everyone seems to think American farmers have some sort of social obligation to feed are better served by the greater availability of high fructose corn syrup or by the greater availability of 24% protein meal.