Why is it my responsibility to keep an adult man who is fully aware of what he is doing (and the consequences of his actions) safe from harm?
If a 30-year-old man wants to regularly drink himself into a stupor, why is it my responsibility to stop him? When he is sober, I can offer him a chance to talk to a psychologist, to a social worker who can help him go to detox if he wants to. If he refuses (when he is sober), that's his business.
If you, as an adult man, regularly drink so much alcohol that your friends worry that you are going to fall over and crack your skull open, or that you are going to get hit by a bus, that's your problem. I resent being treated like a babysitter for adults who completely know what they are doing. If you drink a whole bottle of Bacardi, you're going to be so drunk that you get hit by a bus.
I resent the fact that I have to take care of your swearing, spitting, screaming, crying, pissing, shitting, pleading ass until you are sober enough to go home and not fall on the train tracks. I resent the fact that your friends, who bring you in EVERY WEEK, keep asking me, "What are you going to DO FOR HIM? Can't you see he's sick?" Yeah, I can. But HE CAN'T. He refuses all the help that we try to give him (in terms of detox, and rehab, and psychiatric help for his alcohol addiction). So I mop him up, give him fluids, give him medicine to make him feel better--so he can get up and go out and start all over again. YOU are his community! Whatever happened to interventions? Whatever happened to a little tough love by friends and family? Whatever happened to "Dude, you can't drink like this anymore. It makes me not like you. You are going to die if you don't stop." It might mean a lot more coming from a friend than from a stranger. But instead, you go out with him. You watch him drink himself into a pissing, crying mess. For all I know, YOU buy him his booze. And then you dump him on us when you can't deal with him anymore.
So when he comes in with a skull fracture after a faceplant onto the concrete, I'll take care of him. When he comes in after having a seizure, I'll take care of him. And I'll be nice. But I don't have to like it. And I don't have to like YOU, either.