[Morsul the Dark]

Yes that is true however He(Frodo) gave out until the very end would anyone else have been able to do that? Besides Think about it what if Frodo had never been tempted by the ring would he have been almighty or the ring just not srong at all you see the ring versus Frodo is a battle between two of the strongest wills in middle earth Eru could've have come down himself and destroyed the ring then he wouldn't have to send anyone. He instead sent mortal beings which no matter how strong-willed have flaws