And the results are in.
Would you like to live in 1970s Russia or 1990s Russia as an ordinary Russian?
I don't know, I was born in Czechoslovakia.
China had the disadvantage of being the most populous country in the world.
In crisis, economic or otherwise, Czechoslovakia is much more likely and capable of being rescued by the international community. China will need to rely on itself if only because it is way too big for any kind of help to be substantial and meaningful.
Thus the outcome will likely be even worse than Russia, which only has around 1/10th the population of China and an impressive natural resource reserve.
Taiwan is an independent country with full democracy system but not being recognized by international society because China is pushing its "One China" policy to other countries. Foreign countries or companies violate this idea would be punished economically by China(France got punished for selling Mirage 2000 to Taiwan)
Chinese system does not have any such valve.
I assume the former but would be curious if anyone can make a compelling case for the latter.
Unless CCP somehow screws up the economy really BAD, driving everyone to the point of starvation, nothing will change.
And even then: looking at North Korea, people there were driven far beyond the point of starvation, and they still endure these hardships without any discontent against Kims.
Take a look who took over the power after a collapse. In 9 out of 15 countries, the people who came to power after the collapse were ex-KGB
Of course, in most republics local elites have cleverly kept the reigns of power in their hands, but those were the Party officials, not KGB officers. I think that Russia is the only ex-USSR country where KGB managed to seize complete control. Others are democracies (Baltic countries and, arguably, Georgia and Ukraine, maybe even Armenia), authoritarian states (Belarus, Russia) and a number of sultanates.
Side note: 2013-2014 protests in the Ukraine worked for a simple reason - not only protests enjoyed an overwhelming support in the capital, and had a fraction of parliament supporting it, Kiev is relatively close to western Ukraine, so many active protesters from there just got on buses and drove to join the fight and make the balance more even.
This said, I believe that the bigger the country, the easier it is to control, because government forces are way more mobile, which easier brings local numerical superiority. As for imprisonment, in a bigger country you just need more prisons, that can be achieved without much difficulties.