The US' average education has been going downhill steadily in the last two decades or so. Post-high-school education is becoming damn near unaffordable to all but the wealthy, and even basic "participate in the world" type skills are getting worse.
Apple, Microsoft, Facebook, Google, etc., etc. are all American companies
Steve Jobs and Bill Gates had upper-class parents. Zuckerberg was able to afford going to Harvard, Brin was born in Russia and Page was the son to a famous computer scientist. All you're showing right now is that the upper echelons of American society are going to be fine, and 1st generation immigrants are doing well too.
the Internet was created in America, not to mention the personal computer, integrated circuits and transistors. Or GPS, or air travel, or (going back a bit) the light bulb and audio recording.
All of which happened at least 40 years ago.
Most of the things that make the world the way it is today come from America.
Not really. Most of what makes the world what it is today came from somewhere else. Paper, rockets, computing and sewers came from somewhere else. We've had a brief supremacy spell after WW2 until about the early nineties. After that, it's been steadily downhill. We're still ahead of everyone else, but this is exactly like a racer thinking he's going to win a race after losing a wheel: he might still be ahead now, but that's not going to last very long.
And I see this type of short-sighted - actually, less than short-sighted; it is nothing but a snapshot analysis - far too often from Americans. Gloating that their GDP is still tops, that their per capita income is still tops, that they still dominate certain industries... without realizing that the gap is shrinking fast, and that the fundamentals are all wrong.