did you read the whole comment? alexander already stated that

Bypassing the question of whether sugars and oils are edible (?), field corn is perfectly edible for humans. Field corn isn't sweet corn, and doesn't taste good as a vegetable. But we can eat it the same way most people throughout history have eaten corn - as a staple crop, as a grain like wheat, as corn flour, cornmeal, grits, parched corn, hominy, maza, etc, etc. We just choose not to.

And calling opposition to ethanol "oil and gas propaganda" is ridiculous. Like the comment you responded to point it out, ethanol is sold mixed with gasoline. The industries are synergistic, not competitive. They have a common interest in promoting internal combustion engine vehicles and opposing EVs.

Most of the corn grown in the US is not edible. Barely 1.5%. Most of it is grown for sugars, oils and other industrial processes.

not actually true. This is oil and sugar propaganda.

Most of the corn grown in the US is grass. 100% of it, in fact. Soybeans make up a large percentage of animal feed.