American is going to be white minority because its been a country of immigrants since inception and also sharing a border with a huge population of latinos.
These things don't apply to China. And having select talents immigrate to China isn't going to significantly change the country. We have 1.4 billion people.
What's preventing China from having higher barriers of entry than America? We can learn from what they've done right and avoid what they did wrong.
A nation's athletic program which is a huge source of cultural power and influence. Look at what the NBA does for America. These "soft wins" are precisely the type of victories China need more of.
As for "it does nothing for the average person", you can say that about a lot of things. For example, how does the average Chinese person's life change if China had 3 more carriers today? Yet we're here, pixel peeping over satellite photos.