Personally I'd move to Japan in a heartbeat if discrimination was illegal and they provided a pathway to (dual) citizenship.
From Wikipedia:
> Japan lacks any law which prohibits racial, ethnic, or religious discrimination. The country also has no national human rights institutions.[3] Non-Japanese individuals in Japan often face human rights violations that Japanese citizens may not.[4] In recent years, non-Japanese media has reported that Japanese firms frequently confiscate the passports of guest workers in Japan, particularly unskilled laborers.[5][6]
I've lived here (Tokyo and Kyoto) for about ten years and my Japanese is terrible. If you're in a big city here, English-only actually works. There are also some good channels and videos on YouTube talking about the Black experience in Japan (e.g. https://www.youtube.com/watch?v=e2eqJ4hZkFg).
I've visited for a total of a month across multiple trips.
I don't really know any Japanese, maybe the odd words here and there but that's it.
Major cities all have fantastic english signage. Just not everyone speaks English "well". But Line or Google Translate work fine enough, especially when making friends.
The only place I struggled a little with public transportation was Sapporo on some random bus line that surprisingly had no english signage or announcements, but even then GPS helped well enough.
Living in Japan, even in Tokyo, is a vastly different experience from the tourism bubble one experience in a short visit.
My (British) manager living in the international district of Tokyo still struggle with basic paperwork due language barrier. Which affect your work, tax, real estate errands, traveling, visa, daily shopping.
From Wikipedia:
> Japan lacks any law which prohibits racial, ethnic, or religious discrimination. The country also has no national human rights institutions.[3] Non-Japanese individuals in Japan often face human rights violations that Japanese citizens may not.[4] In recent years, non-Japanese media has reported that Japanese firms frequently confiscate the passports of guest workers in Japan, particularly unskilled laborers.[5][6]