Earlier quoted context omitted.
If most buildings lacked light because the vast majority just echolocated, then the those unable would be disabled. It is okay for there to be a normal human experience, and define inability to participate as a disability.
> It is okay for there to be a normal human experience, and define inability to participate as a disability. That's what most people normally do, yes. Then many people out there define an "ability to enjoy hetero sex" as a "normal human experience" and therefore see gayness as a disability that needs a cure. I'm not arguing about the conclusion here, but about the method and the basis for deriving this conclusion. Th…
Natural selection gave us hearing.