Solid points all around, but I wanted to add one historical tidbit: at one point the USA had literally the best edumacashiun in the world. After WWII, the other nations (like the UK + those in the EU) were bombed all to hell & back whereas the USA was relatively fine. People like Bill Gates advocated strongly for US education funding, b/c it helped feed that behemoth giant of a corporation to have an already-educated workforce, funded by US tax dollars, that they could take advantage of.
We have fallen FAR down the world rankings since then. Tbf, some of that may reflect changes in measurements e.g. does “every” kid need one, or can some be excused to go be a farmhand without needing to finish? (this affects averaged measurements, but not peak ones, or the previously thus-filtered ones)