Not really.
Gas is cheap enough (inflation adjusted) that ethanol is not the new hotness anymore. EV’s are.
What is left are the smaller plants that are making it for feed lots (DDG is good cow feed), and the wet mills that are using it to control byproducts.
And for the “Grow food”, grow what? I see a lot of city people rail against corn, and no one really understands why corn is grown. It is the most carbs per input cost out there. That and the demand for say, carrots is many factors smaller.
It's no longer about cheaper gas, or cleaner air. It's about a de facto subsidy to grow corn to sell to the distillers.
No more ethanol mandate in the gasoline motor fuel blend, no more need to create ethanol, no more demand for the corn that makes ethanol, more p.o.ed farmers with tons of grain on their hands with no market.
I've seen it before when a candidate suggests removing the ethanol requirement, and the Iowans revolt.