Maybe. In a related note, if you shoot my car until it crashes, it may catch fire and burn everything around it. People probably shouldn't do that either

That's not for security or some sense of needing to know what someone is doing. It's so that ATC can effectively route and deconflict traffic. If a UAS is ever operating IFR it must do the same.

If I understand you correctly, you're suggesting that the phones form a mesh on the ground to distribute the data that needs transmission to and from the satellite. And that the mesh network of devices also synchronize their radios to act as one gigantic phased array (or in chunks) to communicate with the satellites.

That's a fantastically crazy idea, in a good way

Every Tesla solar roof thats got fiber could become a base station. Sort of like Tor.

That is exactly what I was suggesting.