So the “environist” want to be rid of ethanol? The best way to accomplish that is to get the Keystone pipeline going. You won’t need ethanol any longer and, we can turn our local ethanol plant from processing corn to processing POTATO’S and we all know potato’s make really good vodka.
As I mentioned, alcohol in gasoline was a ruse to funnel money to farmers without triggering treaty prescribed sanctions. (It’s just ordinary wealth redistribution having nothing to do with what makes sense.) Things done for political reasons are not, on their face, logical. Therefore you can not end them through logic.