I've noticed that my generation and those younger tend to drink alcoholically. Binge drinking I guess you would call it. Not all of course, but many.
I especially see this in the college age drinkers.
So, to say that a person who drinks that way is automatically an alcoholic is, IMHO untrue.
Many of those young people will grow up, get tired of the hangovers, and never go back to drinking that way again.
But, as naive said, if it's a problem for you- it's a problem period.