Just laugh and move on. It’s not going to happen.

These people have no idea what they’re talking about. They think that the developers of four hundred Linux distros, FreeDOS, Haiku, *nix, the BSDs, are even going to bother trying. Then you have industrial boxen running obsolete operating systems, routers, all the network devices that run the internet.

EDIT: and then every application that runs on every platform also needs to be updated. Like that’s going to happen.

If they really cared about the children, they would just physically cut the cables at the Colorado border. That’s the only way that any sort of access control can be enforced.