You've grasped very well the essence of what I was trying to get at in this article.

Indeed, there's a school of thought in psychiatry that's based on existentialism, which I expect is quite understanding of these philosophical, normative issues.

The thing is that the more idealistic our model of what people are supposed to be doing, the more likely the mentally disordered or dysfunctional population will vastly outnumber those who manage to be healthy in that restrictive sense. So we may lower the bar, which is itself a political act rather than anything like a scientific discovery.