Also think the QM way of looking the world could be useful to psychology. But that's another thread.

To your situation, then. . . You could use a diagnosis but the measuring instruments aren't capable of providing it. They (or the humans using them) assume that the measuring instruments can -- you showed the guy that was wrong, falsified his theory, and he was pissed, not interested. A very non-scientific, non-Asperger (and non-me, too, even though I don't have Asperger's) response.

The measuring instruments are part and parcel of a social institution that requires them in order to qualify you for disability benefits. The measuring instruments are "entangled" with the social institution. Probably no way to disentangle that, given the large macrosopic size and number of people and other factors in that system.

Except, if perhaps?, you could find a licensed psychologist at a university or somewhere who might actually be interested in people and the benefits and limitations of psychometrics? Someone whom you can interest and connect (entangle somewhat?) with, and who can then provide a more reliable measurement of some sort? Anybody whose work you find decent in any research you have done on psychometrics?