Karl Popper rightfully noticed the totalitarianism in Plato. But I have a feeling that blaming the abuses of the medieval period on Plato and Aristotle does not make sense. He quotes from one book (Rats Lice and the Middle Ages) that correctly shows that people were miserable. But to blame Aristotle for that? There were no rats or lice in Africa or South America? Were there no totalitarian societies like the man eating  Polynesian tribes   that had not heard of Aristotle of Plato?
I have heard of other complaints about European civilization in the Middle ages coming from the Russian Orthodox church claiming that the West misunderstood Aristotle's "energia."  [This is not actually energy. It refers to the fact that a body can change from one state to another.
Now the Russian church has a point about dynamic energies from G-d. This idea however seems to stem from the more ancient view of the church that was neoplatonic.This really wouldn't work  with Aristotle.
They could claim that dynamic change is implicit in the Aristotelian idea of energy but it is still is not what would be called today energy. it is the reverse of potential. something can be hot or cold.when it becomes actually cold that is when it come from potential to actual energia a stopped non dynamic state.

It seems to me everyone is on Europe's case claiming for themselves  a higher level of humanity and civilization.

Europe today is a disaster,-- but blaming this on Plato and Aristotle is not the best approach. It is rather when they gave up learning Plato and Aristotle that Europa fell into the clutches of Islamic Barbarians.
Even Popper noticed that the only last bastion of real philosophy in Europe was in Catholic Universities.
Not in the public universities which had fallen under the spell of Hegelian  permutations like Marxism, Nazism, or feminism.