What I really don't understand, if you attempt to sit down and hold an adult conversation with a leftist about politics, environment, homelessness, economy or anything else like that they become very incensed, very fast and for no obvious reason.

That's what gets me, they seem incapable of communicating / debating while maintaining a level head, I actually believe there to be something wired wrong.

They seem incapable of comprehending how irrational and unhinged they come across.

Without trying to sound egotistical, my last IQ test came in at 131, apparently that puts me in the top 5%, I find myself having to dumb stuff down at times for certain people and I think I am pretty good at putting myself on another's level in the spare of the moment, but with leftists it different, it’s not an intellect thing, I know some very intelligent leftists, it’s something different entirely, possession maybe, I don't know.