I know a guy who drank a 6 pack of beer every night. Never drunk. Just drinking on the regular. Until his liver gave out, and he couldn't work. Died at age 34 while waiting for a liver transplant. Left wife and kids behind.
My friend's mom died in her 50's from liver failure. Heavy drinker for decades.
Drinking less is better than drinking lots, but don't think it can't kill you.