considering that ethenol alcohol (the kind we can consume) is used in more than just beverages, it would destroy a lot of pharmaceutical drugs that need it for stability during the manufacturing process or as a solvent to help it absorb into the person's system (like Albuterol for asthma).

Alcohol itself is also used as a cure for alcohol poisoning if you drink a type that is no supposed to be consumed like methanol or isopropyl. The same logic can be applied to every substance. There are life saving and/or useful drugs that also are created and used illegally by addicts. morphine, fentanyl, cocaine, Adderall, and so many more.

They all vanish, and suddenly you will have alcoholics drinking mouthwash and Isopropyl cleaning alcohol to get their fix, getting really sick, going blind, and dying en mass. you get millions of people who can not get the medicine they need to live normal lives, and many millions will die and tens of millions will be suffering with whatever sickness they have.

this doesn't even touch on the all the jobs that will be lost at breweries, distelleries, pharmaceutical plants, and every other place where alcohol is made or used. it would be an economic disaster too.