I think people would armchair diagnose bad people with cluster B disorders much less if psychiatric disorders hadn't all been given names by ableists who of course picked the traits most unberarable to "sane" people to name them rather than, you know, the ways it affects the people that have them. It's like, when doctors are all "this disorder gives you extremely low self esteem. and it's called the Selfish Fucking Asshole Disorder" or "this disorder makes you want to die so bad. and it's called the Hysteric Bitch Disorder" or "this disorder disconnects you from your peers. and it's called the Insane Evil Cunt Disorder" and so on and so forth, so of course you have people going "oh, this person is a selfish fucking asshole, they MUST have Selfish Fucking Asshole Disorder! this further proves that all people with this disorder are like that in the first place!" Do You See It