Two-part question:
Knowing what we know now about how Japan was in 1946, including how Japanese people reacted when the book was translated, how accurate was it as a description of Japan in 1946?
How accurate is it as a description of Japan in 2020?
Hi there! Your question doesn't break any rules, and we're happy to let it stand. However, be warned that questions that boil down to "fact check X for me" rarely get satisfactory answers. Critiquing entire texts is a lot of work, and people are rarely willing to watch or read something just so that they can respond to a question on Reddit. It is often more effective to ask more targeted questions that can be answered directly - you are welcome to make more than one post if you need to.