We shouldn’t be growing food for use in cars. It’s not cost effective and it’s not necessary.
And - I don’t want GD alcohol in my gasoline. It reduces my overall fuel economy, has nearly no effect on “pollution” and caters to a very small but “important” constituency who benefit at everyone else’s expense. But then again - that’s what American politics is today - who gets what from who.
To be fair, the corn used to make ethanol is no more food than a pine tree (Euell Gibbons ca. 1972 notwithstanding).
Other than maybe a couple days near the end of the growing season when field corn is palatable, you'd only eat it out of desperation.
So, while I'm no fan of corn ethanol, that argument doesn't hold water.