Well that's an interesting theory. However, on reading it, my leading hypotheses are that people who express such disbelief in the possibility of their being selfish, either lack self-insight, or are lying. Your theory I would give a subjective probability rather lower than these.
Of course, this might be my lack of insight into the aspie mind. But self-interest is highly evolutionarily favourable, and is built into our brains from very early in our evolutionary history - from the first organisms that had brains.
Selfless people do not exist for biological and evolutionary reasons (self-preservation and such). But then... you are responding to someone who calls other people "normies".
The problem with that is: while it's true that one can't treat neurodivergent people fairly without taking heed of their testimony of how their mind works, selfishness is a behavior that has to be evaluated from an external perspective - for everyone, not just the neurodivergent. Because everyone who is ever selfish denies it, and has a story about why they're not being selfish. So it's always evaluated by POSIWID.
> Because everyone who is ever selfish denies it, and has a story about why they're not being selfish
Ayn Rand wrote a book The Virtue of Selfishness - of course, if she views selfishness as virtuous, she is going to claim that virtue for herself
Back to the realm of the more mainstream: a lot of people will admit they act selfishly sometimes - including me. I think you got to look after yourself, but you also should look out for other people - but if you go overboard on being selfless, you can start to be drained, and need to allow yourself a bit of selfishness to recharge.
I think what we really need is a healthy balance between selflessness and selfishness. And that’s the ideal I am for. But do I always get the balance right? I’m sure I don’t, sometimes I go a bit too far in one direction, other times a bit too far in the other.
I think what I’m saying here is pretty prosaic. Not everyone is going to agree, but heaps of people will.
Of course, this might be my lack of insight into the aspie mind. But self-interest is highly evolutionarily favourable, and is built into our brains from very early in our evolutionary history - from the first organisms that had brains.