Once the Soviets reached the tipping point it was surprising how rapidly they collapsed. Could the Chinese suffer the same fate?
I don’t think they will collapse as quickly as the Soviets.
The Soviets had no interest in murdering 1,000,000 or more to keep control (Which surprised a lot of Cold Warriors.) in either the Eastern Satellites or at home. Perhaps they also had no financial and logistical means of quelling unrest that spread out over 11 time zones.
I have no doubt that given their history of starvation as weapon and violent quelling of protests the Chinese would view 1,000,000 deaths as a footnote if they looked to be in danger of communist collapse. They purposely move troops from different provinces to where there may be unrest, rural troops in urban areas etc. Reason being they don’t want to give them the pause to shoot their neighbors.
I don’t believe the Chinese believe that capital is fluid and projects and factories can be moved. Companies as PR sensitive as they are will bolt to Vietnam or India as fast as they can if something like Tianamen happened again.