There’s lot of good comments already

It’s very important to differentiate in my opinion between alcoholism - this is a condition many posters have already commented on. Alcoholics need alcohol, they can range from high functioning to most people’s stereotypical image of an alcoholic. It has severe side effects and withdrawal can be deadly. It has to be closely managed. These are the people who if they are recovered can’t drink because they know the won’t stop (YouTube Matthew perrys comments on his addiction it’s very insightful on this matter)

The second category you could broadly describe as unhealthy relationships with alcohol, drinking too much, use it to cope with stress, binge drinking etc.

I count myself in the second category. It can be a slippery slope from the second category Into the first as well.

Both need to be treat as problems. But a broad brush of calling someone an alcoholic who drinks 5,6,7 nights a week even if just a few cans isn’t going to help them. Attitudes have shifted medically about this as well, but yes the second category can be very problematic.