Your cost estimate is not really reasonable for what it would cost to lay fiber out in the middle of nowhere at extreme scale using labor sources that don't cur

Your cost estimate is not really reasonable for what it would cost to lay fiber out in the middle of nowhere at extreme scale using labor sources that don't currently exist. But the differences here are so stark that I'm not even going to argue against that, beyond what I've done. Let's go with it, while also considering you also have maintenance costs of course - quite large ones in fact when you're obligated to support and maintain wiring/towers even out in the middle of nowhere. Now let's compare to Starlink. That system was privately designed, built, and deployed for a total cost of ~$10 billion. And while I don't know their maintenance costs, I do know they're now already turning a profit with a relatively small number of users. So that's providing complete and stable connectivity for the entire globe, at half of the bottom of an unrealistically low price for wiring a single country. And you get vastly better reliability, and near 0 labor maintenance. I don't think this is particularly close.