>> Now, where on earth does this presume that the Pope and only the Pope is the exclusive representative of Christ on Earth?
“Infallibility belongs in a special way to the pope.”; “the supreme shepherd and teacher of all the faithful”; “his definitions [...] are justly held irreformable”; “for they are pronounced with the assistance of the Holy Spirit”.
Those are just the citations from the passage you quoted that indicate a “special way” that the “supreme shephard” can make “irreformable” “pronounce[ments]” on behalf of “the Holy Spirit”.
That very passage expresses a special connection (i.e. exclusive) between the pope and the holy spirit so that he may speak on His behalf. So ... there you go.
SnakeDoc
Where does it say that the Pope is the only representative of God? Where does it say that the Catholic church is exclusive, in that it says you cannot be saved outside the church.
Are you denying your previous assertion?