This is not at all a practical solution. How much "decentralized P2P internet" infrastructure do you think there is in Uganda? Hell even in the US its virtually nonexistent. Which P2P internet should I use? IPFS? Helium? Any of the other blockchain internet vaporware?

Any Blockchain operating in a small region would have no resiliency, be vulnerable to 51% attacks, and diverge significantly from the original internet ledger.

It's not practical until it is - having your internet shutoff isn't practical either, but with that barrier put into place a lot of things become quickly more practical, relatively speaking.

As they say, necessity is the mother of invention.

You would still have to rely on one person still having access to the internet.