That's the well know and obvious half. The more interesting part is how they mistake empathy with a sign that someone doesn't "have theirs"

A sociopath is able understand other people have emotions and can learn to fake them.

The right wing ideology does not require them to fake it and it really feels like this is being enabled by the safety net that society as a whole has become, not the capitalist monetary one but the one we're all don't reject people who feed off of the social order.

Basically, there is a reasons these people cannot accept socialism. On some subconscious level they know they would only be able to draw from it but not be able to contribute and that this would out them as exploiters of the social value.

Not sure how well I am describing this but I believe that in past times these people would have been outcasts at best but more likely would have been been unalived as a defense mechanism and the historical record supports this.