Board Thread:Theories and Speculation/@comment-5060540-20200418155032/@comment-39350828-20200419121335

it sounds like the anti-bending revolution from the avatar franchise. The reason it was able to happen there was because there was a guy who could permanently remove people's magic powers. In naruto, unless there's some kind of equivalent, I don't see anyone getting rid of shinobi and ninjutsu. You could remove all the ninja academy teachers but there'd still be people who can practice it in secret or are so talented they can use ninjutsu without a teacher.