Oh, it's advocated by the left, alright (damn you language), but e.g. Stalinism was much less that and much more feudalism than Westerners commonly assume; it was quite the underground struggle, and Stalin himself (even without supposing any conspiracy) fell to it, as everyone around was either genuinely too afraid of disrupting him the morning he had his heart attack/whatever it was, or consciously decided to abandon him.
My point is, if you scratch a Stalinist you're likely to find a barbarian; those smart, brave and virtuous alt-right-wingers strike me as the only sort of people who could potentially succeed in truly implementing such a regime.
I have found this most wonderful (if fairly lengthy) article, and thought you would enjoy having it brought to your attention.
It is so good, I think we should include it among the references in the "Politics is the Mind Killer" wiki page. But, before that, I submit it to you, and ask you: is there anything in this article that would warrant its exclusion from this site? I mean, besides the fact that it is about politics, and written by a notorious Social-democrat (And is that in itself grounds for exclusion?).