Yeah, the "chemical imbalance" bullshit theory has finally been completely assblasted. People just don't have a fucking clue about the mechanism behind depression, yet SSRIs are being guzzled down by the population like candy at a kid's party. It's partly the reason why you see so many fucking zombies out there, especially women.
Depression sucks, but especially terrible is the glorification of disease (mostly by people who don't have it to justify their incompetence/ineptness/disinterestedness/whatever), and the mass intake of big pharma products about whose functioning no one has the slightest clue.
Understanding that it's part of a temperament issue (Schopenhauer described it best when he divided the world between Eukoloi and Dyskoloi) is key. People keep looking for some miracle cure, there is none. There is hard work, faith, dedication, and understanding that pain is a part of life.