people in so many socialist countries just rose up and overthrew their own governments

Where do you get the impression from that the people rose up and overthrew their governments?

It started with Krushchev and all went downhill from there. https://en.prolewiki.org/wiki/Overthrow_of_the_Soviet_Union

By the time of Gorbachev, revisionism had taken hold and the economy was mismanaged. It was still better to live in the USSR than the nascent Russian Federation (and even today arguably), but there were lots of problem popping up.

In China you can actually get a master in the history of the dissolution of the soviet union, they’ve studied it extensively so the same fate doesn’t happen to them.

Here are some resources on it. In most cases, it was a combination of internal revisionism and Western infiltration:

• Bulgaria and Albania (chapter 51/page 314)
• GDR (chapter 3/page 113)
• Romania
• Soviet Union

Hakim’s video on the fall of the USSR: https://youtube.com/watch?v=w72mLI_FaR0&feature=sharec

disillusionment with the government, decades of stagnation and lack of revolutionary spirit