The problems we have in America are the same if not much worse in most of the world (except for Europe, I imagine). What % of children in China and India do not have access to decent education or opportunities? I think it's pretty high.
My thought process was inspired by the recent article on the estimated 5 million geniuses in India, most of which will go on to lead lives in poverty.
The 5 million number is vastly exaggerated if you go for a real meaning of the word 'genius'. For example, Einstein's IQ is reportedly 160 and assuming normal distribution that is about 1 in 32,000. Even if everyone in India receives the same opportunities as Einstein did from their childhood, the number would be 1.34 billion/32,000 = 42,000.
Not to mention that IQ alone is far from adequate. Imagination, persistence, and courage are required for intellectual distinction. That's why there are so few accomplished geniuses in the world.
No. Or rather we are doing it badly. But we don't do any better if we geographically segregate people who otherwise might want to work together. It is an orthogonal (albeit incredibly important) problem. As I said, all of our countries should be investing more in education, in addition to having humane and sensible immigration policies and a reasonable social safety net. But in any case, there are more skilled people in the whole world right now than in the U.S. alone, by construction...