Granted, someone saying the latter should never be met with death threats, just like the former!
Hong Kong was given to the Britain by three treaties in the 19th century (1842 Treaty of Nanking, 1860 Convention of Peking, 1898 The Second Convention of Peking), and the true copies of all treaties are in the hand of Taiwan, which were brought to Taiwan by the KMT government during its retreat to Taiwan before 1950.
If the declaration behind Hong Kong’s 1997 handover to China (the Sino–British Joint Declaration of 1984) is revoked, arguably it could be contested if Hong Kong should belong to the holder of the bearer shares of the three treaties, Taiwan. (See previous discussion [1]).
And in the most recent six-monthly report on Hong Kong published on 14 December 2021 [2], the UK government stated that China is not complying with the Sino-British Joint Declaration:
With China now in a state of ongoing non-compliance with its international obligations under the UN-registered Sino-British Joint Declaration, the UK will continue to work with international partners to hold China to its legally binding obligations on Hong Kong. Upholding the promises it entered into freely is in the best interests of Hong Kong’s stability and prosperity.
China is not-complying the declaration behind Hong Kong’s 1997 handover to China.[1]: https://news.ycombinator.com/item?id=23260934
[2]: https://www.gov.uk/government/publications/six-monthly-repor... " Six-monthly report on Hong Kong: 1 January to 30 June 2021"
I agree that the mainland government acted rashly. The forced implementation of the national security law definitely violates the spirit, if not the law here, and understandably a lot of people were alienated by this move. That said, the Basic Law does provide a provision for the implementation of such a law (Article 23), and there's ample wiggle room for the governments involved to argue that they haven't yet demolished the "one country, two systems" approach as yet.
Same for Catalonia, Hong Kong or any other.
Not saying it is a thing that should be done lightly, but also not impossible.
Countries exists for the people, not the other way round like China likes to think.
China's priority is national security, and given the track record of western liberal democracies it is not unreasonable. As I recall we had a civil war the last time states tried seceding.
I’m not American, I don’t agree with the Vietnam war and I think the civil war was an ethical difficult decision. That was 150 years ago so not really sure why it is relevant.
Six flags theme parks are quite literally named after the six different flags that have flown over Texas as a nod to it being an independent entity regardless of which larger nation currently lays claim to it.
Saying you are from Hong Kong gives you a ton of information that would be lost versus China