TO BE CLEAR... Tp4 is supportive an independent HK, just as we are moving towards decentralized Solar power, Humanity should also move towards decentralized governance as WE HAVE the Technology to do it.. COMPUTERS FTW..
HOWEVER:::: East Asia is a patriarchal society.
They cling to a very antiquated form of pride, colloquially known as 面子, roughly translated, it's akin to esteem.
HK seceding China would be like Rhode island (Old, when they were rich) seceding the United States. People would laugh, haha, big USA let little rhode island beat them.
Now, you may think, Hey, Taiwan's doing JUST FINE. China doesn't seem to be doing anything about their nonstop succession-chatter.
The difference between Taiwan and HK is that Taiwan has TSMC, a frontier technology, that as of current, China can not replicate internally/ reproduce. But , it'll happen eventually, it's not something insurmountably advanced and just as a matter of total brain power, it's inevitable that the Larger Organism surpass a smaller one. HK has some waterfront real-estate (of value) but no high tech specialization, and so they have no real leverage, even to talk about succession.
Fundamentally , The MILITARY INDUSTRIAL COMPLEX is what makes any piece of Land Sovereign, either by direct nationhood, or proxy (neighbor protection).
No such power exists to protect HK, because there's no raw value in HK worth the expense of that force.
America went into Iraq for OIL, it's worth the expense. The disruption and dis-united Middle East keep prices Low, had it not been this way, The middle east would be the wealthiest and most powerful nations on this planet simply for their natural resources.
The US army has never "Liberated" anyone who didn't have the natural resources to pay for the effort. HK has been a large money hub, this is true, but again, it's just a hub, and money is just paper, NO amount of paper is worthwhile. The US is not going to trade ships/planes/ dead americans for a small island with no natural resources, no technological specificity that they don't already possess.
Now, as to HOW BIG is the current revolt.. The fact is, while it's popular for western media coverage to sensationalize, similar to the Media Trump cash-cow, the actual rate of protest is very localized and minimal. Anyone who has a job / something to lose, (which is most people), are NOT part of this protest. It's primarily young people who have alot of free time. If you're not a street-hooligan in HK, and you didn't watch TV news, day to day, you would never know there was protest going on. The majority of the city is quiet with no unrest.
Let's recap, Independent HK is a GOOD IDEA.
It can't happen because HK is not worth the Expense of any external-nation's military force to "Liberate".
The Actual-Protest / Civil Unrest is very small, the TV adds 10lbs, if you just lived there, you wouldn't know there was a dispute.
Think about it this way, would anyone start WW3 over HK, and could such a war be won, when both sides possess WMD which detonated in the Atmosphere would send ANY nation back to the stone age within days. Nooqs blow transformers. without transformers the Electrical Grid collapses, It doesn't even have to kill anyone.. just blow the Grid, and the war is over for everyone involved.
People seem to think wars still involve tanks and ships and such, that's only when the United states want to destabilize the middle-east to get dat oil. You know, press the buttons of poor indigenous people who don't have tanks and ships, but they have AK47s that makes them terrorists. Hahahahahahha
A REAL WAR, wouldn't need any of that stuff. If it'd even be bootable in the first place.