You plainly don't understand the nature of addiction if you think it's just a matter of will-power. It's a disease and in the same way that one would sympathise with anyone who has a life-threatening illness, then so it is with addiction.
He's a chronic alcoholic, a rotten, miserable, bleak, powerless existence where nothing but the next hit matters and there's no quick or easy fix. So yes, as a human being who's going through a terrible time, he warrants sympathy and compassion.
but he chose to go down this route. and he chooses to continue down it? he's already said he has no desire to stop. that he has to have a beer. so why should i feel sorry for that person?
In what sense is addiction a disease? I had an addiction to smoking and I stopped. was i diseased? please explain it to me as I seem to be rather thick.