Geography of success. Our life is built on history. You are the product of all the work and generations that came before you.If demographics do not matter then you must believe in magic soil because how else can you explain third world people/countries compared to cultures who created thriving places?
Very easy example: after WWII the major industrial centers of the rest of the world were bombed out. America's were untouched because of our vast ocean moats. We used them to dominate the rest of the degraded world.
All of history is like the above example. It's built on the steps that came before in response to the current circumstances of the day. America isn't different from Africa because of the type of people, color of skin. We are all the same humans. It's different because of thousands of years of different historical circumstances that arrived at you sitting at your computer and an African at theirs. There are only behaviors, not types or groups of people. Those types we invented in our own minds.