Irrelevant Edit to add: the same principle applies to towns, regions, districts and neighbourhoods etc
If a country is doing well economically and socially, it will not fear democracy. It is human nature to be forward looking. Apparently, the leadership fears Hong Kong's liberal society and therefore wants to curb it. They know something that we don't know. Perhaps capitalism isn't working for China after all? A lot of people are betting on the Chinese horse. There are huge stakes involved. But do you actually know what you're betting on?
MAJOR: China Arrests Two For Espionage On Hong Kong Internal Affairs https://www.fort-russ.com/2019/12/major-china-arrests-two-for-espionage-on-hong-kong-internal-affairs/?utm_medium=ppc&utm_source=wp&utm_campaign=push&utm_content=new-article
Why Are Ukrainian Neo-Nazis Joining the Hong Kong Protests? https://sputniknews.com/asia/201912...0yddCp3IcTzx3zzHmJJQp-0W6aL-4wdytVhwcCjvVaCS0 https://www.facebook.com/video.php?v=160773771798497