I can see why. I read it as “people who don’t listen to music” not being the same as “people who can’t listen to music”. The first being people who simply choose not to for whatever reason, as opposed to people who have a reason not to.

Not that I think people who choose not to listen to music are inherently odd or that you have to have a reason not to like it, but I would definitely double take at someone who told me they actively choose never to listen to music without a reason other than “I don’t want to.” But then again, I’ve never encountered the concept that people may simply choose not to without another reason, and the more that I think about it the more I’m genuinely wondering if that has more to do with the people I tend to spend time with rather than with the general population.

That assumption wasn’t made? The first comment was about the three people this person has met. Not a generalization.

The actual “psychopath” statement also wasn’t an assumption, it was a parallel: music serves a purpose in this person’s life, “but so do psychopaths in war”, ie, “just because something serves a purpose doesn’t mean it’s good, so take this with a grain of salt”

edit: a punctuation mark