Community fiber for the last few miles is the only thing that makes sense - you are correct that there is no point in building redundant wiring. One shouldn't b

Community fiber for the last few miles is the only thing that makes sense - you are correct that there is no point in building redundant wiring. One shouldn't be legally blocked from having alternatives, though, of course. This fiber should be collectively owned by the property owners, with legally required peering and network policy voting rights for whoever lives on the properties (aka ensuring that landlord can't lock their tenant(s) down to any particular ISPs or impose a crappy network policy on them). Then careful planning and relaxed permit processes for running lines between IXes, so ISPs can come and build the actual backbones, offer their own services and so on.