Dictators tend to collapse along with the stability of their countries. The more distributed power is, the more stable it is. China was already a huge country with massively centralized power. Now it’s still huge, but the power is concentrated in just one man, and thats even more unstable. So... worse crackdowns, even less freedom, and a much worse and less potentially flexible long term trajectory.

Edit: to be clear I am not endorsing either system, just describing them as accurately as possible.