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.
It's France they're very xenophobic. Just look at how they treat the Corsicans, Brentons, Basques and Catalans.
Night and day to even a few hundred metres across the road in Spain or Andorra.