You know...I used to believe that too. But through life's events and experiences...I found out that there are people out there who really don't have all the juices in their brain flowing correctly. It wasn't purely just a choice or a thing that they would "have to get over". Don't get me wrong, there are those who get misdiagnosed; or those who are depressed by choice, or those who are depressed by the consequences their facing; but there are some who have an actual illness.
You have cut to the core. Depression is a continuum and people can be helped by talking it over with friends or a theapy group, finding faith in a great religion, biorythm, scientology (hold on to your money) and even trancendental medition and other of this ilk. But if neurotransmitters are not up to the task, some of these antidepressants really work wonders. Advising patients to be monitored when increasing or decreasing the dose is not just common sense, it is what the medicos have been saying all along. Many of the anecdotal stories of prozak deaths involve abrupt cecession of the regimen. Very dangerous. Should have a label for those people who don't believe anything else.