> The internet doesn't have borders.

The overwhelming majority of internet connected devices have an internet connection that's physically connected, for 99.9??% of the distance, with wires or fiber cables, to every other user in the world, with a very nearby wireless hop at the ends. If the cables weren't so fragile, you could pull on your wifi AP and they would see their wifi AP (or maybe nearby cell tower) move.

The tiny fraction of the rest is passed by shining RF transmitters to some distant receiver, separated by some physical distance, to some base station sitting on the ground within a border.