Earlier quoted context omitted.
Hardly. Countries inculcate values, educate people on the public dime, support R&D, etc. People should be proud when those policies bear fruit. E.g. Sergei Brin's family emigrated to the U.S. when he was six, because of Soviet discrimination against Jews. E.g. they were graded harder on university entrance exams, or given tougher exams altogether. He went to public high school and college, and went to graduate school…
Because they overwhelmingly had nothing to do with it.
You would have no trouble sketching a ranked list of countries more and less likely to produce Google. You would be shocked to see Google emerge from Burma. You would be surprised to see the world's powerhouse search engine emerge from Greece, Spain, or Italy. Even among the top-tier countries, if you had to put money on it, you'd need an extremely good payoff to bet on anyone but the US.
If the US has "overwhelmingly nothing to do" with the success of Google, you have to believe Brin could have moved to Greece, or even Burma, and successfully built that company. Most of us probably don't even believe he could have succeeded in Germany, or the Netherlands.
Even if you stipulate away all the extrinsic network-effects stuff --- ie, stipulate he'd have gotten funded despite parking his company in Greece --- you would not place the same bet for his hypothetical attempt to buid Google in Greece.