I do mean the latter. If not impossible, then as technically and economically infeasible as possible. I think it would be difficult and complicated to implement, and would require multiple layers that mutually cushion against attacks on any one layer. I think an international treaty around satellite internet that stipulates that any person can connect to it would be a start. That of course would be vulnerable to DOS attacks by nation-states or regional powers (which should be defined in the treaty as a crime against humanity), so there would also need to be robust and redundant ground-based networks and reserved citizen-band spectra that supplement the satellite coverage.