collapse of the old society

The mental illness is a symptom of the root problem. The inability to cope with the modern world isn't by itself a mental illness, but it keeps getting called one.

I'll even take it a step further. I think most of these mental illnesses being attributed to inability to cope with modern society aren't mental illnesses at all, and are in fact a very healthy reaction to a very unhealthy system. But maybe I'm just crazy.