And people wonder why many Christians don’t consider the catholic church Christians.
Brilliant! so you took the words of one disturbed human being and painted 100s of million CHRISTIANS, with that same brush.
as far as Catholics and the Pope being Christian,
Christ made Peter the leader of the apostles and of the church (Matthew 16:18-19). In giving Peter the keys of the kingdom, Christ not only made him leader, but also made him infallible when he acted or spoke as Christs representative on earth (speaking from the seat of authority, or ex cathedra). This ability to act on behalf of the church in an infallible way when speaking ex cathedra was passed on to Peters successors, thus giving the church an infallible guide on earth. The purpose of the papacy is to lead the church unerringly.
With all due respect one could argue there are other Christian denominations that blatently accept homosexuality and “gay marriage” which is strongly rebuked in the Bible as an abomination. As Christians we should unite forces against evil not attack each other which btw the devil loves.