Some interesting research came out recently on the relationship between people with left-wing authoritarian politics, narcissism and psychopathy.
Interestingly, it seems to vindicate many earlier thinkers who theorised about the connection between leftism and pathology.
link
The left has historically and in the present always fought for control of metacognitive language, concepts, and narratives. It gains control by vehemently asserting the rightness of its definitions while violently attacking any attempt to contradict its irrational assertions. This is where it reveals deep psychopathic tendencies and why it attracts psychopaths and the morally ungrounded. The key to leftist momentum and control is their control of metacognitive thought and language. If you disagree, you are ‘racist’, a ‘running dog’, a ‘reactionary’ and must be destroyed. The secret of all mind-control is control of metacognition such that victims cannot even think another way. ABN
American Buddhist Net 