We can all thank our lucky stars for that. Totalitarian regimes are usually corrupt, and talent is based on how much you pay rather than your actual talent. They usually do alot of own goals that benefit the leader and it's cronies rather than the population at large. And constant purges which again helps the upper echelons but causes the country to go backwards.
We can thank their corruption for their '3 day special operation' taking almost 2 years and counting now.
Similarly China now has a population and economic crisis of their own doing to please their leader. Disallowing tutoring causing alot of younger generations to lose their job and killing the tech industry jobs because of beef with jack ma. And the one child policy which was a large part of the population decline.
We're lucky that people can't speak up to their leader when they make mistakes. Imagine if these regimes were competent. We just need to look at Germany in WW2 to see how that can turn out.
They're very nationalistic especially China. There's no guarantee they don't want to conquer the world even if they were not authoritarian. Just ask any of them about the 9 dash line, instead of saying something neutral like no comment they say yeah it belongs to us.
So the best thing is even if they democratise, for the moment never interrupt your enemy whilst they're making a mistake.