We're all gonna get old and some of us are going to get dementia. I have a hard time pointing at vulnerable people whose brains are nearly expired and saying "Haha jeez what noobs, how could they be such idiots?"
As someone also on the spectrum, I'm sorry but I say what my mind says, I don't fully understand all the dancing around statements that people do. Just tell me what you mean, and I'll do the same for you.