Yes, I get everything done I need to and then some. I'm up by 7 every day of the week, I work efficiently 50, sometimes 60+ hours a week. I'm with my family nights and weekends. I exercise, I play basketball, I play music.
I'm 5 drinks in right now. I drink alone, every night after my wife and son are asleep. I'm usually working and drinking from 9 or 10 until 2 or 3 and then up a few hours later. I feel a little off for the first hour or so and then drink enough coffee to plow through the day. To be completely honest I think I've been drinking enough that getting a hangover would take a phenomenal amount of effort. I've acclimated to having booze every night. That's a problem. But it's not the big one.
The big deal is: alcohol is unequivocally bad for you long-term. If it doesn't kill you directly through fatty liver/cirrhosis it'll contribute to an early death through many, many forms of cancer, heart disease, dementia, etc. You won't find many doctors who will say that drinking is not bad for you. My doctor was shocked even though I lied about how much I drink. I lowballed it and my doctor said "whoa, that's too much"
It is a problem. A serious problem that is too often marginalized by alcohol's social role.