You could start by looking at average life expectancy, income inequality, education, literacy rate (the US is shockingly bad here), and health care access. As

You could start by looking at average life expectancy, income inequality, education, literacy rate (the US is shockingly bad here), and health care access. As for "innovation" and "unicorns", the US has done well, but a lot of the best examples have been European immigrants to the US. When the chips were really down, in the Manhattan Project, who did the US rely on? Overwhelmingly it was Europeans who emigrated to the US: Albert Einstein, Hans Bethe, John von Neumann, Leo Szilard, James Franck, Edward Teller, Rudolf Peierls, and Klaus Fuchs. The US would not exist if they hadn't. So let's not get too cocky.