> A simple fact is that all 7 billion people can't live like upper middle class Americans, it's impossible. Why not have one place in the world that a huge number of people sit at the top?

Because winning the birth lottery gets you to the top, otherwise if you're from somewhere else in the world...good luck.

Of course 7 billion people can't live like upper middle class americans. Upper middle class americans are going to have to bring their lifestyle down to a sustainable level.

We have a myriad of problems at this moment in time, some of them existential. I have very little sympathy for people who think we should maintain the status quo in the face of these problems.