"down 10,000 innocent lives"
I doubt this number. And let's not forget that they let them protesting for some time. An highly unusual event in China. Problems occurred when protests did not stop.
"threatens democracy and freedom worldwide."
China is not totally undemocratic and I doubt that democracy is necessarily the best solution at all times and for all states.
"This psychopath will eventually cause harm to a few countries (Taiwan, South Korea)"
South Korea?
On the other hand I am sure the people in Syria, Libya and Iraq were happy about the US bombings. Remember "highway of death" in Iraq?
"when said and done, maybe enable North Korea to strike a few nuclear missiles into Los Angeles or Tokyo, who knows."
North Korea is a buffer sate for both, China and Russia. China has NO interest in a war in North Korea.
By the way, North Korea. The Soviet Union fought an existential war against Germany and lost 10% of their population. This war DEFINED the Soviet Union. In Europe the second world war was basically a Soviet-German war (9 out of 10 German soldiers that died, died on the Eastern Frontier).
This being said, this is NOTHING compared to the war that North Korea fought:
https://www.strategic-culture.org/news/2017/12/11/state-fear...
Yes, North Koreans are paranoid. They may have reasons to be.