Ah, the joy of the comparative (rule 10) game.
After 17 years, Pinochet stepped down. It wasn't one of his family members who took over.
Castro? El Presidente for about five decades. Even if you like the guy, there can be too much of a good thing. He has so far succeeded in making Cuba subjects to a family dynasty.
If that is a criticism of the Castro regime, it is a valid one, albeit that Raul was himself prominent in the movement prior to Fidel's victory against Batista, so he was important from the start. But it says nothing much in favour of Pinochet that he was different. Stalin wasn't succeeded by his son. That hardly absolves him from his many atrocious deeds.
I turn to consider the deficiencies of these régimes, which don't usually end as dynasties, but never produce democracies. There is a symmetry between this "Communism" and the "Libertarianism", hereafter C and L, we have been discussing. (Scare quotes because both terms are misnomers.) Both neglect the importance of establishing and securing appropriate constitutional settlements, which was a major concern of the English, American and French revolutions, as well as of such movements as Irish independence.
C emanated from an ideology that identified private property as a source of exploitation of people by other people. So it is. C drew the conclusion that the abolition of property would therefore eliminate exploitation, which does not follow at all.
L identifies government as a source of oppression. So it is. It therefore seeks to eliminate or weaken government. But this doesn't weaken oppression, which simply moves to other foci. It weakens democratic oversight. It makes government more definitively the tool of the vested interests that survive the weakening of parliamentary bodies. Police forces are a source of oppression. Take them away and society won't be free of oppression; it'll be ruled by psychopaths and other gangsters.
Feudalism is the "collapse ecology" of politics. When Rome collapsed following barbarian invasions, feudalism is the mechanism by which more primitive successor polities eked out a wretched existence among the ruins. Centuries elapsed before humanity escaped from this order of things. Need we return to it now?
The American Revolution was among the first (as late as that!) political developments that, for all its other defects, rejected the remnants of feudalism - the social categories of Church, Crown and nobility still then so prominent in Britain, and instead introduced an order in which, as Robert Burns said
Poor dunghill sons of dirt and mire
May to Patrician rights aspire
(Which is not at all the same thing as establishing equality or eliminating oppression, be it noted). Is this gain to be squandered, because the US political machine and part of its electorate have succumbed to disgraceful panic during an economic crisis, like able bodied passengers throwing the old and the weak out of lifeboats to save themselves at others' expense in a shipwreck? Heaven forbid.