I do not mind a little competition if we bring people who might improve our technological edge. China is going to surpass the US eventually and oh lord, we are in denial!.
This is my opinion, I am not claiming to know the absolute truth or facts.
A lot of things would need to change for that to happen. Switzerland naturalizes more people every year than the PRC has ever naturalized and the Swiss are not known for making joining their nation easy. Shanghai, the richest city in China, has a GDP per capita on par with Poland last I checked and the country as a whole is ranked 96th, a bit above Thailand. The EU isn’t that attractive either. Germany is poorer than all US states but Mississippi. Money isn’t the only thing when it comes to brain drain but it’s a big, big thing.
A European long-term resident of China.