Yes, if the geostationary orbits were inaccessible, you would require maybe tens or hundreds of satellites launched in a ring to achieve the same the same resul

Yes, if the geostationary orbits were inaccessible, you would require maybe tens or hundreds of satellites launched in a ring to achieve the same the same result. :-/ On the other hand geostationary orbits or so far out it's maybe harder to achieve a dense enough junk field out there to matter? I have no intuition about such scales...