Some of the hong kong youth/grade school kids seems to have become extremist, almost terrorist like after being brainwashed with such hate. What do you think Hong Kong/China will do to rehabilitate them?
Young HK people aren't brainwashed. They're angry that their city has been turned into an overcrowded metropolis, where they have no chance of owning a reasonably sized property, have dismal career prospects due to the lack of well-paid jobs (and that those exist are designed more for international financial workers) and state benefits are pathetic.
Hong Kong spends less than 10% of GDP on government spending. That compares with over 14% in Singapore, nearly 15% in China and about 20% in Germany.
Basically, Hong Kong is a libertarian's wet-dream. It's low tax, low regulation and low spending. If you're rich, it's heaven. If you're poor, you're stuffed. If you're in the middle, you'll struggle.
This was sort of ok in the past, because Hong Kong was growing fast and there was enough money for most people. But now Hong Kong is more like a developed country, so government spending needs to increase with richer people shouldering more of the economic burden.
Just look at those figures I gave you. Hong Kong really should be spending about the same as Singapore as a percentage of GDP. But in reality it's spending almost 50% less. That's huge. That's why life sucks for so many people there, because the government won't put in place social programmes that are needed. And because young people are not going to have established careers, are more likely to have young children to look after and have a long time to retirement, they're most affected.
But, hey, it's easier to just blame people for being "brainwashed" than admit they've got actual grievances that have been ignored for the past 10 years and have no sign of being resolved.
EDIT: The specific government policies that started the protests - and the police response that inflamed passions - were just triggers. The long-term issues I mention above were the fuel. If young HKese had been happy with their lives and prospects, they would have been less concerned about the proposed extradition law or accepted mealy-mouthed government apologies such that the protests ended last year.