Capital plus immigration. I've been in WA a decade ago and I was surprised by the number of ethnic Chinese people everywhere. One day China will just have to push a button to turn the country into one of its province, without any need for war.
The previous generation of ethnic Chinese is better integrated, but the new generation is very patriotic and loyal to the communist party.
https://www.sbs.com.au/news/hundreds-gather-in-sydney-for-po...
The West always hoped China would turn into a democracy, but that turned out to be an illusion. As long as maximising profits regardless of the consequences is a priority, this will continue.
It's often forgotten that China is and has always been playing the long game where in the West policies can change after the next election.