Incidentally, I also misread your post. After reading the first few
paragraphs, it seemed to me that you were trying to describe what is called
"pathologizing". But then, as an example, you gave... a pathology. So
whatever point you were trying to make was completely opaque to me as well.
I found his choice of Asperger's as the example quite illustrating,
since there is some controversy over whether (and/or from what point in
the continuum) it should be considered a pathology instead of merely a
personality type, and in particular whether it is useful to view it as
either one to the exclusion of the other.
Given that there exists a continuous spectrum of behavior from normality
via various degrees of Asperger's to full blown autism, it does not
really make much sense that attitudes towards such behavior should
change discontinuously at some point. Unfortunately, people often do
have such a discontinuity between "normal" and "abnormal". I
believe this was quite the point Karl was trying to make, but it does
seem to me to be the point in his argument that you missed.
(I'm genuinely trying to explain my viewpoint here, since I _did_ find
Karl's post rather illuminating. I'm not really trying to argue about
which viewpoint is "right".)