Originally Posted by FNPL
There are now less of them
I agree more-or-less with everything you said, except for this.
There is an ever-increasing supply of rich people, in line with the world's Gini index. They are also increasingly less clever, as you no longer have to be a captain of industry or an innovative world-changer to be a billionaire.
So I also disagree with your outlook: On a global scale (not just looking at the developed world), the future is bright!