lool This is not about immigration bro. This is about having the ability /influence to forment unrest in rival countries to suite/further your interests. The U. S has by far the most influence /ability to do this than any other country. It even did(tried) it in Russia during the presidential elections there. The world reach of the U.S is simply mind boggling to be honest.
In fact no country in the world has an influence /ability to forment any kind of unrest in the U. S. unlike the U.S who can virtually forment unrest/has influence in many parts of the globe like in the middle East/Asia/Africa/Estern Europe etc.....
So that's why I'm saying China should whine for their weakness, not whine for the U. S intervening in Hong Kong politics /protests. If they can't/unable to do the same, then they should shut up and blame themselves., Don't whine about others strength but yours. I have said it several times, politics(and even more so geo politics) is never a clean game, so don't expect it to be clean. As much as i wish we could all live in peace/harmony , this will never be the case as far human beings inhabit planet earth tbh.
All China has to do is get rid of the US consulate or embassy in Hong Kong, and the problem will starve itself to death. However, the student protests are insignificant right now, thus, China avoids overreacting.
I don't think you fully understand immigration. Nations send their immigrants to other nations for various reasons: economic, military, political, personal, etc. Middle Eastern nations and African nations purposely send their immigrants to Britain for these reasons, and they know Britain is addicted to consuming resources from the Middle East and Africa. Then the British whine about immigration ruining their culture. Britain is clearly a declining power that is still on decline. Britain is being picked apart by the nations that were once conquered by British colonialism.
I thought it was the global Muslim terrorists/rebels who have the most capability in disrupting a nation's domestic affairs. These Muslim terrorists/rebels are based in tiny little Palestine, Iran, Saudi Arabia, Yemen, Iraq, Pakistan, Egypt, Afghanistan, and other Middle Eastern & Central Asian nations.
The global Muslim terrorists/rebels got the US to spend ridiculous amounts of money on a dysfunctional TSA, on an even more militarized police, on further expanding the NSA's espionage capabilities, on massive police operations during popular events, and sending military personnel chasing after the terrorists/rebels in various nations around the world. America's domestic and global war on terror/rebellion has been going on for over a decade now, and it does not seem to be ending any time soon.
We also have Muslim terrorists/rebels in China, Russia, India, Africa, the EU, etc.
Then you have Hispanic immigrants gradually and greatly changing the demographics, politics, and culture of America. Then you have Israel and the Jewish diaspora being spoiled rotten by both the liberal Democrat Party and the Christian Republican Party. Then you have China stealing from, hacking, and spying on the US, which disrupts US economics, politics, and military systems.
My point is that America is not as invincible and omnipotent as you think. I think America is a declining superpower, but still highly pretentious.
As anyone intelligent could see, causing social chaos in other nations or regions is more about ambition than technology, economic wealth, and intelligence.