If things are black and white then we miss the fact that HK's legitimacy is of a different kind to Taiwan's. Which in turn reinforces global opinion that HK's fight is equivalent to say Ukraine's. Why exactly aren't the UK rushing to HK's aid? It's precisely because of the nuances of the history that too few people are aware of or interested in. At the very least if such knowledge doesn't help HK now, then it will help all those in the future involved in similar acts of aggressions that the West, let alone China, still haven't grown out of.
> Why exactly aren't the UK rushing to HK's aid?
For numerous reasons, none of which have to do with a nuanced view of history: Brexit, internal domestic politics, fear of upsetting China, fear of impacting the British economy, etc. Britain in particular and the West in general have zero qualms about intervening in other countries' affairs when it suits them.
Hongkong is Chinese territory and this is no longer colonial time: China is no longer so weak that it may be slapped into compliance. China, though still not that strong, will do whatever it wants at home.
Of course, Britain is no longer a world power and is not in a position to dictate policy to other countries apart from the puniest ones.
Let me put it like this. Imagine I'm an alcoholic, but I can't afford rehab, so I steal the money to check myself in. I get better and everyone in the world agrees that my new state of sobriety is the best possible outcome for me. However the police find out, I go to court, get a big fine, get depressed and start drinking again. I ask for help from my friends, but I neglect to tell them about actually what happened, I allow them to entertain the idea that I am a total victim.
My point is that we need to know that context of a situation, or we can't truly help.
So I have to strongly disagree with you that history has nothing to do with Britain's current stance on HK. Britain is a sad, humiliated, crumbling nation. Brexit is in fact Britain's chickens coming home to roost from the very events of which HK is but one in a myriad of aggressive wounds on the world. Those rich, Eaton-educated families that got their wealth and arrogance through the authoritarian, totalitarian, anti-democratic practices of colonialism are finally beginning to find their true place in the world. Either Brexit happens and Britain suffers Northern Irish violence and Scottish independence, or Brexit is cancelled leading to the collapse of the Conservatives. Either way the core source of British "pride" has a very sobering journey ahead of it.
Hate to break it to you, but the rich elite in the UK will not suffer because of Brexit. The poor will suffer, as they have always done. The elite will be just fine, and probably be in a position to strengthen their standings from the chaos.
And finally, what is your conclusion on China then? You are not arguing they're in the right, so what? What's your suggestion? What's your take? What should the CCP be doing right now? Should they be implementing democratic reform on the mainland to converge with the HK culture more?
I think part of the problem is that while "attempting to understand" you're leaving out some important things. How did this "Chinese perspective" form? Was it natural, or deliberately formed or amplified with propaganda? What are the political motivations behind it? How much value should be put on irredentist nationalism, especially when wielded by an anti-liberal authoritarian ruling class against smaller more-liberal communities?
> If things are black and white then we miss the fact that HK's legitimacy is of a different kind to Taiwan's.
That really is a matter of perspective, isn't it? One could very validly argue that these "nuances of the history" that you're emphasizing are actually irrelevant to the posture that one should take to toward the current situation, and kind of a distraction. To put it another way, if you are considering slavery and have a slave in front of you, does it really matter if he's a slave because his parents were captured in a raid or if they were sold into slavery by his grandparents? Or should you focus on the slave's thoughts and his experiences? Maybe the his owner is adamant that his grandparents bought his slave's family fair-and-square, but how much effort should you make to empathize with that position?