Well, let me wake you up...,
Large parts of the Internet, and especially the Internet BackBone, is already running in Internet II mode (or, in reality comes down to IP v6).
Certainly not possible to switch over in an instant. This takes already years.
Problem is that a lot of devices connected to the Internet will need to get reconfigured/updated to fully support this new IPv6 standard, to have this Internet II thing working. And with the current deployment rate, it will take a while.
But,.... if you really want to speed up this process, you just have to find a reason to get it implemented at lightning speed when people all around the world ask you for that.
And that can be the moment when the Internet has collapsed, and 'they' will tell you it is because there are to many people connected to the current Internet, and the new Internet (Internet II, or IPv6) will solve this problem, and is 'shaped for the future'

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Then it is not so easy to enter the Internet anonymous.....If not for a lot of people impossibe.