wct:
they have been assumed to be 'abnormal' by the majority of people for so long.
From this sentences alone, I'm not sure if you see the irony here...
You omitted some key context, when I asked him to "Define normal / acting normal." It was literally one sentence prior to what you quoted. Do we have to go into the whole 'quoting honestly' topic again?
You may not realize it, but 'normal' can have different meanings, and the one you're applying in this case is only one of them.