The sheer size of the US (we're the third most populous country in the world) means we aren't going to go away. But we do face the question of whether we want to hit above our weight, as Germany does and we did in the past, or below our weight, as India does.
There are many factors in play, India is slowly developing and is rife with growing pains from infrastructure to social issues, which no country is immune. German used to be the language of science at the turn of the last century. California pupils used to perform very well then prop 13 passes and funding declines among other things times and people change.
Germany is worth looking into. It has about 1% of population of the Earth, but that 1% has a massively oversized tech footprint. Perhaps because it has almost 10% of the top 200 universities in the world. Which cost about a hundred bucks a semester to attend. These facts are very likely NOT unrelated.
University isn't a right to attend, unlike higher education in the US where all that's required is a pulse you must test in otherwise you're off to a vocational school. The US also has more top ranking universities and is home to many tech giants, why is that? BTW your parent post is fantastic.