We have ended up with a grossly oversimplified picture of depression that he said doesn't look at social factors..But at a deeper level, it doesn't look at basic human processes.One reason why is that it is much more challenging to say that so many people are feeling terrible because of how our societies now work. It fits much more with our system of neoliberal capitalism to say, okay, we'll get you functioning more efficiently, but please don't start questioning...because that's going to destabilize all sorts of things.
Whether you have depression or not, I highly recommend reading this book. Everyone needs to widen their perspectives, it's how we grow as individuals. This book will help you do that.