Canada

It actually takes surprisingly little if it's done consistently and without giving your body time to rest.

A standard drink has roughly 14g of ethanol in it. People with notable liver damage tend to have a history of a decade or more drinking 30-50 grams a day, or two to three drinks.
People who drink more than 80g a day for a decade are almost guaranteed to have liver problems (~5-6 drinks).

Obviously drinking a half gallon a day is worse, but consistent long term drinking is also not great.

It is essentially a poison that's only around because it's easy to make and traditional at this point.

heavy drinking – a term defined as five or more drinks for males, or over four for females, on one occasion at least once per month in the past year.

What the article calls heavy drinking, would have been nothing to me when I was an active alcoholic. Towards the end I'd be drinking anywhere from a pint to a fifth of bourbon a day. I was an active alcoholic for over a decade, running from age 23-33. I'm thankful that I was able to sober up, celebrated 5 years sobriety (from alcohol) a few months ago. Saved my life.