Are you aware that China only leased hong kong to Britain? They didn't have much of a choice in giving it back to China due to the treaty. I linked a summary of the history for you below.
https://www.history.com/this-day-in-history/britain-agrees-to-return-hong-kong-to-china
Edit: looks like some people don't care for inconvenient things like historical fact and upholding treaties between sovereign nations. Lol.
What is this quote from? It sounds like my kinda humor