If it was democratic, disagreeing with the government wouldn't send you to jail. Try walking in Shanghai with a sign saying "the government is corrupt" and see how long you last.
As for the quotes - according to Chinese their system is democratic. According to Americans theirs is. From my European point of view both are somewhat flawed democracies, China because despite advancing surprisingly quickly they are not there yet when it comes to transparency and human rights, and US because its political system is essentially just institutionalized corruption. That and indirect voting.
"armed police officers dressed in protective clothing came to the location to drive out the crowd."
This is you making your point about China being democratic?
US being "institutionalised corruption": sources? How is Europe.less corrupt? Again, sources?
As for corruption - in Europe corporations can’t just buy congressmen. In US it’s the norm.