Ellon Musk is from South Africa, he was not born in America. He has created an enormous amount of wealth in the US.
It is as simple as the US won't have self landing space rockets today without this man. Tesla would be bankrupt today, like Fisker.
It seems clear to me after reading comments here that Americans feel entitled to the position of world rulers they enjoy today. As if the wealth they enjoy as hegemonic power was generated in America and not all around the world.
Do you believe your salary is American generated? It is not. You print dollars that the world needs to use because it they don't sanctions are raised to them, or the US just invades them.
But as PG is saying, the world using the dollar as world reserve could change overnight.
You take your privileges for granted.