YOU SAID:
Why is this even in Japan is what I want to know
INTO JAPANESE
これが日本でもなぜ知りたいのか
BACK INTO ENGLISH
Why do you want to know this in Japan?
INTO JAPANESE
なぜ日本でこれを知りたいですか?
BACK INTO ENGLISH
Why do you want to know this in Japan?
That didn't even make that much sense in English.