Many thanks to the person who shared that you can ask your local Chinese embassy for a copy of „The Governance Of China“.
I reached out to the Chinese embassy in Vienna and got not only a super friendly response, but also an invite to the embassy + 6 copies of the German translation (2x II, III, IV)!
I appreciate you typing that out and I agree that it will take time and more "cross pollination" for attitudes to change in China. I am dubious though of the argument that China's attitudes (towards cannabis and drugs) are unique to it's own history. I think they are basically on track with much of the rest of the world over a contemporary period of time. As you say, even China has a historical relationship with cannabis as medicine. China is also certainly not the only nation with negative attitudes towards cannabis currently. It is only recently that the US and some European countries have been relaxing about it. I have met many people who lump cannabis in with heroin and crack as simply "drugs". It's just been due to propaganda and ignorance.