You act like the Japanese didn’t want to lift their people out of poverty. That the people within SONY didn’t aspire to be one of the largest corporations in the world.
The Japanese owned a significant amount of real estate within the US at their zenith (kind of like China today). They faltered because it started to cost more to import certain materials then it did to improve those raw materials and export them. Econ 101, cheaper markets existed for that type of manufacturing. It took some time to transition to a service economy. They still excelled at heavy industry and still do. They’re still one of the predominant ship builders and car builders in the world.
Japan was also one of the first countries to be hit hard by an aging population, partly because of xenophobia, but I think mainly other cultural factors. It’s challenging to try to keep your economy going when the workforce is shrinking and more of a country’s wealth is going towards caring for the elderly. I think anyone with aging parents can attest to that.
It’s not always America ruined their lives, plenty more nuance than American geopolitics. Lest we not forget that America helped to build them up after the war in the first place. And not having to fund a military can do wonders for a country’s growth (you know, so long as they aren’t invaded).
Your hate for America and capitalism has distorted your world view. I’d prefer to live in a world of opportunity rather than a world of schadenfreude.