High profile jobs are involve some level of public relations. Asians are not acceptable to the US population as a PR person because the US population will not stand for it.
Any position where you need to win a popularity contest, you can forget about hiring an Asian, because it just will not work.
Oh, and if you need to win a popularity contest in africa, japan, or france, you can forget about hiring an anglo.
It is human nature, it is the way it is.
The US did not pass the Chinese exclusion act just for the fun of it.
There is truth in your post.