That wasn't the point of my post. There are a lot of reasons to be opposed to ethanol, including those you've outlined. Lack of ability to produce enough is not one.
My point was that AMericans have gotten used to cheap food, the cheapest and most varied food supply in history, and much of that was a result of a long term government plan and at the expense of the farmer.
It really comes at everyone's expense.
The Soviet Union was the world champion at agricultural planning. Over seventy years the communists and their five year plans reduced the Soviet Union from the largest food exporter to the largest food importer. They guaranteed bread at five cents a loaf. It was so cheap farmers were selling bread to their pigs (at least they didn't burn it) while others would stand in line for hours to buy bread.
Let's go back to a free market. If the farmers and ethanol producers can sell it for a profit without government help then I'll shut up.