I see what you're saying, but the world needs to learn to defend itself. Humanity can't really progress if they always rely on one guy to fight their battles for them. The truth is, shinobi are already too weak as it is in comparison to Naruto and Sasuke.
I mean, just look at the gokages performance against Momoshiki. Pathetic!
How is it that even base Naruto is so much superior to them in even basic taijutsu?! Sasuke is understandable since he has sharingan and rinnegan, so there is precog involved. He also has choku tomoe which apparently grants swift movement as stated by Madara.
What is the excuse with base Naruto though? He wasn't in sage mode. He wasn't using Kurama's power or rikudou power. Yet even in base he still managed to put up more of a fight against Momoshiki before going into his mode.
My point is:
The world, in some sense, could actually use the absence of Naruto and Sasuke. That way, they will be pressured to progress on their own instead of relying on the local guy with the super eyes or the local jinchuuriki.