You don't have to be mentally ill to be these things. Considering the type of people that rule our world
(
) it seems that the most well adjusted people in our society are not only more than capable of being this, it seems like a requirement.
So I am no longer comfortable using the word psychopath (or any other "dark triad" nonsense) to describe these types of people. These people aren't struggling to function with a mental illness, they're of the exact mindset that thrives in our backwards society.
However I'm struggling to think of a suitable replacement word that carries with it the same "This is serial killer coded shit" vibe that calling someone a psychopath carries (and associating such a thing with psychopaths is ableist so I don't want to use the word in that way anymore)
Calling them ghouls, fascists or nazis doesn't carry the same weight. What kind of word bests describes the casual, dangerous heartlessness of people without throwing the mentally ill under the bus?
I think insults tend to have that ableist skew, turns of phrase however (eg 'they ain't seeing heaven') can be evocative without the ableist connotations imo.
Describing someone's actions nakedly (such as: murderous, manipulative, incurious, gullible, cowardly and so on) feel more appropriate and truthful than the 'innate' descriptors like the ones you said you want to get away from (which I think is where the ableism is rooted in)