The natural distribution

Throughout human history we have come up with diagnoses and developed categories for types of people. We have even invented diseases and conditions some of which turned out not to be real. 

Sub-categories of categories were created to explain anomalies that didn't quite fit under a model we were almost certain was correct. 

We tried to help people but then also stigmatized them by using coarse language to describe them. We called some "retarded" without much concern for how it affected them. 

At points in our history blood letting and lobotomies were considered desired treatments for some people, proving the trial and error approaches we trusted to our experts of the day were sometimes ill-advised. 

The reality is that our complexity as human beings both at the psychological and physical level has required millennia of experimentation bolstered by the development of technologies that helped us find solutions. 

People that we used to marginalize as being beyond help have been identified and treated after having found the source of their suffering. 

What remained then was cultural tolerance for people who behaviorally fell outside societal margins. They didn't suffer from any conditions but simply needed the amplitude to live as their natural inclinations demanded. 

They suffered from discrimination rather than from some pre-existing limitation. This didn't stop society from branding them with mental illness; all because they had dared to not fit within the designated margins. 

We have discovered that the natural distribution of humanity isn't governed by the cultural norms of the day but rather by reality.