Is US tech even good anymore? Do none of us not encounter the massive amount of shit from companies like Google, MSFT, Apple, Amazon, etc as users? Truly terrible bugs or user flows from engineers that clearly don't care while everyone is just collecting their own share of blood.

I can't think of a single thing that big tech has done to improve my life, or society for that matter, over the last 10 years.

All US Tech has is the backing of the US government and that is likely to change in the coming decade, without the pressure of the US government would these companies be as competitive? We see what happens when others try to, rightfully I might add, regulate them: they throw extreme hissy fits and pressure the US government to force the countries to back off (by threat of sanctions or military action).