Fascinating read, thank you for sharing. I love the examples. You sound like you're trying to be fair to both groups. I never thought of autistic people as being honest by default, having an aversion to lying, but that sounds true.
I perceive in many autistic people a severe lack of consideration for others. For example, the classic unwanted dissertation on the autists' chosen subject of fixation. Like in Chris' case, he'd talk to strangers at length about things like his interest in magical stones.
Not trying to be insulting, I'm sure people like him are truly unaware of the other person's disinterest unless they flat out say, "Can you stop telling me about this!?"
Nonverbal signs of disinterest, lack of follow up questions (one sided conversation is usually a bad sign), trying to change the subject, are a few clues. I get that they don't think such signs are necessary, but I'd hope that they would anticipate and try to remember to... think about the other person.
I don't know if this is exactly accurate, but it sure seems like a form of selflessness. It seems like most autistic people I've interacted with don't think about anyone but themselves, and their own interests.
The word autism is derived from the root word from alone. It seems like they live in their own heads, only peeking out to interact with the outside world when absolutely necessary. Like if they could just live in their house and never have to talk to anyone ever again they would be perfectly content. Not this self pitying, sense of failure isolated normies usually feel.
Is that generally accurate, if slightly exaggerated?