When I was born, and when I grew up, there was no Internet at all. We had cars, and even (eventually) color TV. We had landlines, albeit party lines (you had to share your phone number with an unknown partner).
We sent a man to the moon.
It would be idyllic if shutting down the Internet would just revert to the good ol’ days.
Unfortunately, that would not be the case. Now days we’ve become so dependent on the Internet in so many ways, shutting it down would be catastrophic and lead to a total financial and political collapse.