Different history, different laws, different national character.
2nd Amendment parallels need not apply.
Wow, this person is so smart, it make our life more convenient
My niece had a Japanese exchange student years ago we talk him to shoot rifles pistols and shotguns.
He was a happy camper.
Their laws are bunk then. The Japanese should have the same right of self-defense (and defense against tyrannical government) as anyone else.