None of you is autistic.
"None of you is autistic" probably irritates me as much as "none of you are autistic" irritates you
Although I have no valid reason to be irritated in my case lol
"Not one is autistic" is grammatically correct while "Not one are autistic" sounds like an uneducated person said it, so you're correct that you have no valid reason to be irritated. Perhaps the people around you use improper grammar and it's what you have grown accustomed to.
What part confused you, Soph? I broke it down into colors, so was it the
green part, the
orange part, the
blue part, the
red part, or the smiley?
If it's the red part, I was kidding, which is indicated by the smiley.
Squiddy got it.