The last quoted link provides a good one-page summary on why QKD is not going to be used. But most of the reasons were known since day 1. Even the practical implementation loopholes were known for 12 years. I suppose the only recent change is that PQC gets standardized, which I predicted would be the last straw in killing off QKD. I suppose you would translate that page to Chinese and try to spread it in China.
Research physicists (as a community but of course not individually) do not understand engineering requirements and do not understand cryptography, and keep hyping QKD as a matter of fashion. The responsible people should know that quantum computation is similar in many ways.
Cheers,
H*****
Dear Lingyu and H*****
On the matter of QKDs, I rather still wonder why QKD researchers had not discussed with researchers on computational cryptography. At least some of them did as I cited in my slideshow, and concluded that combining QKD with non-ITS authentications would never make the system ITS.
although they still call an ad hoc solution that they combine QKDs with PQC.
Attacks on quantum key distribution protocols that employ non-ITS authentication (2015)