like perhaps feeding the starving billions.
I'll just repeat the usual refrain: starvation is just a distribution problem, at least for now. In the US, we throw away 30-50% of our food, and 60% of us admit we overeat. In comparison, 15% of us struggle to put food on the table occasionally, including 5% who struggle often. So right now, we have enough to feed ourselves and hundreds of millions of other people. Maybe you mean taxpayers should pay farmers to grow food specifically for those food insecure people, both here and abroad? We'd also have to pay for distribution, of course, and we'd still probably miss a good chunk of them.
Sorry, I know your main point was showing the disgusting irony of using biofuels to buy the worst kind of food. Totally in agreement there.