— Eric Kaufmann (@epkaufm) April 12, 2020
First, I don’t think “liberals” is exactly the right word here, but I’m not going to relitigate that one now. Second, as I’ve argued in my The Age of the Infovore (and in some forthcoming writings you haven’t seen yet), I don’t think “mental health condition” is appropriate in this context. Furthermore, what are called “mental health conditions” often are sources of insight and can be positively correlated with talent.
That all said, I don’t think you can understand modern American discourse, most of all social media, without recognizing that “the intellectual Left” has higher neuroticism — as defined by Five-Factor personality theory — than say centrists. The Right of course has its own correlations, but that is a topic for another time.