The case you've heard that 'make themselves' leave out, among other things, distillers grains, which is a big item.
However, as I've asserted, it is so important to continue the case against ethanol that to even point that out is heretical on my part.
The only case needed against ethanol is its lower energy density. Its simply not as good as gasoline and uses more energy then it creates.
And speaking of ethanol, what’s your retort to the peasants who had to pay $5-6 a gallon for propane to heat their little peasant hovels this winter?