I think you have completely the wrong takeaway here...
The US population is around 330 million. The world population is 8.1 billion people. What is that 4%? If you took a random sampling of people around the world, none of them would be Americans. You're going to need a lot more samples to find a trend.
Yet when you turn around and look at success stories, a huge portion of this is going to occur in the US for multiple reasons, especially for the ability to attract intelligence from other parts of the globe and make it wealthy here.
I understand, but reality has to factor in — to get representative you would have to narrow your sample to English-speaking, narrow it to legal for long-term employment in the US, narrow it to having received at least an American-level higher education…
The US population is around 330 million. The world population is 8.1 billion people. What is that 4%? If you took a random sampling of people around the world, none of them would be Americans. You're going to need a lot more samples to find a trend.
Yet when you turn around and look at success stories, a huge portion of this is going to occur in the US for multiple reasons, especially for the ability to attract intelligence from other parts of the globe and make it wealthy here.