That's maybe true when young people in China first learned western democracy ideas. Nowadays I think most of educated Chinese believe democracy is not suitable for China. They didn't get the whole picture of western world, but who does nowadays. They see signs of culture revolution in western social movements and rejected those wholeheartedly.
I don't see how this is a productive point. "Democracy is best" is 1) what the US government wants you to think, and 2) an idea that they can manipulate the information environment to promote.
Can they? The US government has very limited "hard" control over what information is published, e.g. there are no banned books in the US and it would be impractical for the government to try to impose any such ban, in stark contrast to the PRC.
