That is true but you cannot single out alcoholism for those traits either. It applies to many health and behavioral issues that people engage in including conditions like diabetes, heart conditions, some cancer, obesity and even things like repetitive orthopedic injuries obtained through sports plus hundreds of others.
That is the reason I say that the OP has a generally good point because there is absolutely no known line you can draw that differentiates alcoholism from other activities that people engage in when looking at it from either a disease or behavioral model. I understand why it is a practical problem but you have to be really careful about singling it out as a unique problem when it isn’t. The most effective treatments are essentially the same as for many other mental/behavioral disorders and I am not just talking about 12 step programs. Almost all treatments that are effective at all for alcoholics are also used to treat other conditions.
Alcoholism is a shockingly common problem and easily hidden. Some of the people that have it including people here are established and well-respected professionals and some of the most moral people you would ever meet otherwise except for that one issue that they cannot beat. It could be your doctor, boss or professor just as easily as it could be the panhandler on the street.
The good news is that medical science views it as a true disease and there are some breakthroughs in drug therapy that have been approved in the past few years. It appears that alcoholism is often caused by a problem in the feedback loop to opiate receptors in the brain. Alcohol is not an opiate itself but it acts on those receptors indirectly. Researchers found that alcoholics and even their young children tend to have abnormal brain scans for certain patterns (in the case of the kids, it was before they even ever had a first drink). There are two ‘drugs’ on the market today that can fight alcoholism even in the formerly chronically addicted sometimes with very dramatic results: Naltrexone and Campral that can be used together or individually. If you have an alcoholic close to you, ask your doctor about those because they may work when nothing else does.
I put ‘drug’ in quotes because they are more of an anti-drug in the recreational sense. They don’t cause any type of high and the side-effects are minimal to zero. They work by helping to correct the abnormal brain feedback loops that many alcoholics have genetically and try to fix on their own by drinking with predictable (non)success and lots of heartache.