Can start with the number of unicorns in USA vs Europe, especially when you take population in to account https://www.failory.com/unicorns
I'm not sure about that - I really like my lifestyle which would be nearly impossible to attain in Europe, but is very attainable for Americans.
I don't see how you're materially better off because you're forced to use foreign companies (Google, Facebook, etc.) instead of having your own.
And the inclusion of so many cryptocurrency "unicorns" in that list is also quite telling.