I’ve only heard shōganai by westerners describing life in Japan, and then while watching videos of the tsunami in 2011. And as others have said, it may be a reference for you, but isn’t it just a common saying? Common enough that someone from the other side of the planet knows it, but not your reference.
Shikata ga nai
Bonus points if you get the reference.
Edit: I will not be responding. Don’t waste your time.
I’ve only heard shōganai by westerners describing life in Japan, and then while watching videos of the tsunami in 2011. And as others have said, it may be a reference for you, but isn’t it just a common saying? Common enough that someone from the other side of the planet knows it, but not your reference.