Lord Acton’s maxim would apply.
That is the general form of skepticism that reasons as Pro decentralizing of power. The Con is that when power is too decentralized it will become the cluster thing where nothing actually gets done.
While democracies can be left or right wing it is difficult to imagine a leftist autocracy. It is a contradiction in terms.
That's because the semantics of terms show that the direction someone is coming from and heading towards will qualify the terms. So, when the people in a democratic construct of governance elect and subsequently entrust representatives with power, there is a degree of movement towards autocracy since power is being centralized somewhat and in some degree by the people. When you add term limits, it creates redundancy.
However, if an autocrat appoints/elects representatives for the people, it will not actually qualify as a decentralization of power because the representatives are not elected by the people but by the autocrat. So, both the centralizing and decentralizing of power are always qualified by the power being delegated by the people, and never by an autocrat. And this is why it's a contradiction in terms to assert that a democracy can form out of an autocracy, but it's not a contradiction to claim an autocracy can form out of a Democracy.
There are dictatorships dressed up in left-wing clothing. North Korea and Syria are examples. They remain dictatorships.
Yes, this is true. Look at the same semantics here. It would be a contradiction in reasoning to assert that there are democracies masquerading as autocracies. But it's clear that there are autocracies that masquerade as a Democracy. This doesn't make all autocrats liars, but it does show that those who want to take power away from the people, will tend to rely on propaganda.
I should be interested to see an argument in defence of any autocrats - current or past.
That would be difficult, at least for me, since I'm not a historian. I think it's safe to say that Democracy itself is based on a general skepticism of those who hold power that subjectively would apply the same for any elected officials as it does for an autocrat. For example, objectively a good autocrat would be a good and wise king who wielded his power fairly and truly cared about his people, but in the subjective skepticism of the people it's quite possible that he would be disliked equally by all just because he was fair. Same goes for an elected official.
Moreover, dichotomies have sets and subsets or texts and subtexts, and objectively Good/bad does not actually belong in a left/right dichotomy, it's a North/South dichotomy. In other words, when good/bad becomes subjective then polarization in terminology occurs. That's why a left/right dichotomy is about finding a neutral center that is objectively equitable for two opposing subjective views of what's a fair give and take.
To see Democracy/autocracy as good/bad in our psycholinguistics will make people susceptible to propaganda, and this will manifest hypocritical judgment and cynicism. In reality, Democracy/Autocracy simply represents the centralizing and decentralizing of power in degrees by the people which both have pros and cons for the people as a whole. The dichotomy doesn't even exist in an autocracy, only in a democracy. The proper way to reason so as to not be fooled by propaganda is to see that a democracy is only as good as the people entrusted with power, and likewise with a good autocracy. For example, a good autocrat would be a good and wise king; To think and say the king is bad simply because he was an autocrat would be a lie.