I thought the most interesting point was that already in 1960 China threatened to invade if the UK attempted to introduce greater democracy to the colony. This

I thought the most interesting point was that already in 1960 China threatened to invade if the UK attempted to introduce greater democracy to the colony. This article from 2014 describes it in slightly more detail. https://qz.com/279013/the-secret-history-of-hong-kongs-stillborn-democracy/ https://qz.com/279013/the-secret-history-of-hong-kongs-still...