I feel like I'm in the twilight zone reading that you would like confirmation there isn't a demand problem in China. I thought I could trust that you know who has been propagating the China demand problem. But apparently, they are more effective than I gave them credit for.
As an investor I have found it pays big dividends to ignore rumors and focus on things I actually know. Since a demand problem in China goes against everything I do know, I do not put any credence in the rumors of a demand problem. The number of Tesla sold into the Chinese market has been miniscule compared to what natural demand should be. Tesla has shown no sign of taking extraordinary steps to stimulate demand. China is a huge country and will buying millions more Tesla before demand is a serious concern. Along the way Tesla will lower prices to increase their addressable market to numbers that will boggle your mind.
You have been played by the naysayers and the FUDsters.