. You don't care about things that are important to them and stare at them blankly, do you want people to only talk to you about things that interest you?
This one's a bit of a dichotomy.
"do you want people to only talk to you about things that interest you?"
Well, frankly, yes, unless they are willing to accept that they might get a response that makes them uncomfortable, or at least, accepting of the fact that the interaction might not go they way it is typically expected to by NT people.
"I also find it interesting that people's offence at your lack of interest upsets you"
This is the kickback. As I've said, I can't fake it. It's not possible. I'm just being who I am, doing what is perfectly normal and typical for me, so yes, I do get upset sometimes when people imply that I'm 'wrong', 'stupid', 'ignorant', or 'offensive', simply because I see the world totally differently to them and I don't necessarily value the same things or share their interests/concerns/ideas.
Think about how you would feel if people reacted to you in a way that you would completely understand and comprehend if you had gone out of your way to be offensive, only you've done no such thing, acted in good faith, and done nothing more than express what you genuinely feel.
You can't win, you come out the bad one no matter what. Keep your mouth shut and say nothing because you feel nothing you're 'emotionally stunted, repressed, inarticulate, obstructive, incapable of being normal' (that last one IS really offensive). You say what you really feel because you, like most ND people, are inherently and fundamentally honest, don't do deceit, don't play games, and have a strong sense of right and wrong, and you're painted as 'offensive, inappropriate, insensitive, loud mouthed, lacking in tact' and so on.
Once again, we're back at 'bloody neurotypicals' and all their infuriating peccadilloes. It's not a one way street.