Corn is not a good stock for producing fuel ethanol, that much is true. Not that there is something wrong with the ethanol itself, it is just a rather inefficient way to get there.
I was a bit worried about how far down I had to scroll to find this.
There are many other sources for combustable fuels that don't divert part of the food production infrastructure./pr>
Sadly, there doesn't seem to be a lot of pressure to put much effort into developing them. Seems that the pressure is mostly in the direction of "just keep doing what we have been doing".