Popular overthrow is highly uncharacteristic of the Han Chines over the last four thousand years. Dynasties grow weak and decadent and are overthrown by a general or a barbarian chief who initiates a new dynasty. The Mao dynasty yet continues.
If a dynasty is perceived to have lost the “mandate of heaven” there are rebellions.
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The concept of the Mandate of Heaven was first used to support the rule of the kings of the Zhou dynasty (1046–256 BCE), and legitimize their overthrow of the earlier Shang dynasty (1600–1069 BCE). It was used throughout the history of China to legitimize the successful overthrow and installation of new emperors, including by non-Han Chinese monarchs such as the Qing (1636–1912).
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https://en.wikipedia.org/wiki/Mandate_of_Heaven