To focus on the claim in the title, calling the CO2 byproduct of yeast fermentation of a grain, in which its carbon all came from atmospheric sources in the first place comparable to the pollution of an oil refinery is absurd.
https://iopscience.iop.org/article/10.1088/1748-9326/ac8943/...
The 'pollute' in the headline is misleading enough to be considered a lie.
In particular because the point of an oil refinary is to produce fossil fuels, which then get burnt, releasing fossil carbon.
Having said all that, moving to EVs will reduce the use of corn ethanol anyway.
Ethanol for fuel was stillborn in the US by using corn to create ethanol, which is too inefficient and competes with food. What ever happened to the 20:1 ratio of using switchgrass, which no one eats? And why mix ethanol with gas, anyway? We could just use pure ethanol, which is more performant than gas at the cost of a 1/3 of a tank less milage, which is a fair trade.
Great. They should just stop this charade then. There are 30 million acres planted with corn used for bioethanol production. Out of 90 million total acres planted with corn. For comparison, the US has about 800 million acres of forests.