I was aware of Pinochet and the general CIA coup, but not Allende in particular; I don't think it's a failing to admit that the knowledge any one person has access to is limited. That's why my immediate response was one of attempting to find resources, not trying to generalize about something that I was deeply unequipped to speak on. The world's big, sadly I can't claim to have knowledge of everything on it.

My little reading on Allende makes it sound like he was democratically elected and pretty widely loved among the left-leaning members of his country - again, the only potential authoritarian charges I see levied against him are the socialization of private sectors, which I personally have not enough economic background to really have a stance on either way. If that's the only thing that he's called authoritarian for, I'd say that my understanding of the colloquial definition is probably more focused on aspects like freedom of speech, religion, etc. being limited, as opposed to market freedom.

But maybe my internal understanding of what makes a nation authoritarian is flawed! I'm happy to be wrong if it means I learn something. Maybe there's internal conflation of fascism and authoritarianism happening, and I need to re-draw some of the distinctions between the two.

I appreciate the book recommendation - the study I've done has focused less on political theory and more on philosophy, so if you have any other recommendations that cover things like the Marxist/anarchist split, etc., I'd be grateful!