We have a misconception that a government that mistreats it's people can be overthrown. Most "revolutions" require extensive military and economic support from foreign military powers.
The American Revolution is a great example of this. Americans tell ourselves we were led by the Boston Tea Party, the Declaration of Independence, and George Washington to obtaining our freedom from the British. The truth is we likely would not have succeeded without the military and economic support of major world powers France and Spain at the time.
The Chinese people have received no foreign support for throwing out the CCP dictators. The West even returned Hong Kong freely. Now Hong Kong is being oppressed and it's people tortured and murdered. And greedy American pop culture figures like LeBron James support totalitarian regimes against freedom fighters. I stopped watching the NBA at that point, and will never take seriously LeBron's support for BLM. He only does what is convenient for him.