The problem is, the higher we go on the Maslow pyramid, the more likely it is for it to fail. You just can’t have a huge mass of creative, inventive people without them complaining about leadership (and wanting to improve it).
And totalitarianism by definition has problems accepting criticism.
The only way for totalitarianism to “work” is if the rulers are both much smarter than the population as a whole and also benevolent.
Regarding China, let’s see. These kinds of regimes don’t fail immediately. Just the cracks get bigger and bigger. From what I heard there’s a consolidation of power going on, that’s generally a sure sign of the first cracks appearing.