> Additionally, Japan has a very clear and straightforward process to convert HSP Visa (Highly skilled visa) to a permanent residency.
I mean, that's true as far as it goes, but HSP is one special visa amongst many, and they're not all so easy. Also, Japan is currently in the middle of its own dramatic restructuring of the immigration system related to HSP, including a number of new requirements that would drive critics of the US system to apoplexy (i.e. language fluency requirements).
Overall, the Japanese system looks a lot more conservative than the US one, though the sanity and consistency level is far higher.
> HSP is one special visa amongst many, and they're not all so easy.
Japan has a selective immigration system where the profiles JP gov considers as "necessary" are made easy to immigrate, and the others not so much.
One can disagree with the method, but at least it is consistent.
Near that, half of the American tech (and associated GDP) is constructed highly qualified immigrated engineers on H1B visas, and still the US gov openly shit on them.
> US system to apoplexy (i.e. language fluency requirements)
JP mainly just put some Japanese language level requirement on the HSP visas related to roles with communication. That honestly does not shock me.