ScottyN wrote:
Shouldn't we therefore treat all people we meet, whether on the spectrum or not, as individuals first and foremost? And doesn't the power of Darwinian reasoning render many of the labels used in psychology somewhat obsolete, in a certain sense?
Yeah, people should, but most of them won't. One can argue about the reality/non-reality of various classifications, but ultimately the social classifications (such as race, the colloquial meanings of "ret*d" or "psycho," "working class," and so on) become real and dominant factors/concerns in people's lives, because the majority of society treats those differences as if they are real. Like with money; little actual value in the paper & ink of a dollar bill; has value because enough people treat it as if it does.
I think I see your point, but I think it's a little like saying that when people talk about racial issues, they shouldn't use "black" or "asian" or "white" or etc. because races aren't genetically all that distinct (if that's true?). Social realities cause there to be reasons to need these labels to talk about certain things, even if they are illusory.