Sorry, no, you even denied Stalin’s rule qualified as that. He did a bunch of bad stuff but how dare anyone use blunt terms to describe when one guy in charge until he dies gets to do basically anything and kill his opponents. And nobody better call kneejerk defenses of that hierarchy a kneejerk defense of hierarchy!
Name an actual dictatorship. Tell me what the hell you mean when you use that word, if you mean anything when you use that word.