Also, the PLA already has about 6,000 troops stationed in HK: https://en.wikipedia.org/wiki/People%27s_Liberation_Army_Hon...
The HK-Zhuhai-Macau bridge is a 55km long bridge connecting a 8x smaller city in China to Lantau Island which then requires another separate two bridge crossing to reach the New Territories (and then another to reach HK Island).
The military strategic value of this bridge is less than nil. The bridge was built for its stated purpose which was to increase integration and economic growth of the Greater Bay Area. The indirect effect of this is to tie HK's economy more deeply into the Mainland's so that HK becomes assimilated but there this was plainly stated from the beginning of the project.
And, sadly, like in Tienanmen Square, little would change.
The "international community" may condemn the violence and human rights abuses but, well, the "international community" still does business in Saudi Arabia, so the chance of the condemnation changing anything seems minimal.
HK-ers are alone. No one will help them.
Which probably doesn't matter one iota, given Tibet, BUT: it's going to be hard to hide that invasion from mainland Chinese who live in big cities, and may just start asking some difficult questions. If you live in Shanghai -- or I guess more to the point in Shenzen -- you'll have to work quite hard to see why you might not be next
China invading HK would certainly make peaceful reunification with Taiwan impossible though.
Did the 1st Marine Division invade LA in 1992?
Hing Kong will go back peacefully if they have the Chinese government back down. Hing Kong is also essentially a client state to a large degree. So, invasion isn’t exactly a wrong way to describe it.
I can't help but think that for us Europeans it touches the nerve where we know at some level that all our chickens will come home to roost like this one day?
This is not a judgement against China, but a nation that plans massive infrastructure projects, has a history of single-party rule (and rule by dynastic monarchs) and also is responsible for the Uighur re-education camps, doesn't really sound like a country unwilling to wield it's military might.
While it's citizenry and residents are much more diverse and identify not as Chinese but seperate, HK has historically been part of China, and only really a separate state/entity for a couple of centuries.