I think our difference is that your regard the church as a human institution headquartered in Rome, whereas I think it is the body of sincere believers everywhere. Some are to be found among Protestants, Catholics, Orthodox, and Coptics, but no earthly organization can hold them. Jesus said that His kingdom is not of this world. It is spiritual, not worldly. As Alexander Solzhenitsyn said, the boundary between good and evil runs through every human heart. The Lord has known those He called from the foundation of the universe. He does not need any human outfit to tell him the truth.
No. I believe the words of Scripture -
“But if I tarry long, that thou mayest know how thou oughtest to behave thyself in the house of God, which is the church of the living God, the pillar and foundation of the truth.” 1Tim 3:15