CCP's dictatorship bloodily conquered China, population 1.4B, 20% of the entire planet's people.

USA has also rescued hundreds of millions of people (including China!) from bloody conquerers, as in WW II.

You're arguing with folks who just want to be angry, not listen to facts or sage observations.

(it's not like the US is innocent; we have made a huge number of terrible mistakes attempting to maintain the Pax Americana. I fully acknowledge while being fairly sure that China could and would do far, far worse than the US)

This speculation that China could do far worse is totally unfounded given that they've had plenty of time to push buttons militarily that the US and the Soviet Union had already pushed with much less military power.

What democratic government did they overthrew? Because the ROC was no more democratic than the CCP... and Taiwan didn't have real election till the 1990.

China is allied with Russia right now to overthrow Ukraine