Nowhere in the scriptures was Peter presented, represented or reffered to as the shepherd of the whole church.
The pope have often held themselves as infallible.
Pope Gregory VII (1073-85) :
"The pope cannot make a mistake."
Paschal II: (1099-1118)
"Whoever does not agree with the Apostolic See
is without doubt a heretic."
Pope Innocent IV (1243-54):
described himself as
"the bodily presence of Christ."
( presumably by a kind of
transubstantiation at his election)
Pope Boniface VIII (1294-1303) :
"Every human being must do
as the pope tells him."
Pope Leo XIII (1878-1903):
"We hold upon this earth
the place of God Almighty."
( Encyclical Letter, June 20, 1894 )
Peter didn't hold those positions. Paul surely didn't. But looking at those quotes, it sure seemed the popes view themselves as perfect, or as Pope Leo XIII says, they see themselves as 'God on Earth'.
Since you gave us such a wide selection, all saying the same thing, I suspect that it is from a website with an axe to grind. That being the case, I would like to see the original quotations in context, because I suspect that context is being omitted and the translations may even have been fudged.
Every priest is "alter Christus" (another Christ) when he offers the Sacrifice of the Mass. But only as a representative (just as Christ is the Head of the Church - the Pope is simply his Vicar on earth.)
Even with all that being the case, nobody has ever claimed that no Pope in history never made a mistake (or never said or did stupid stuff. I mean, look at Alexander VI). Usual misunderstanding about the scope of infallibility.
You did not answer my question.
And Peter is clearly instructed by Christ to be not only the Rock with the Keys of the Kingdom and the power to bind and loose, but also the shepherd of the sheep -- Matthew 16:17-19 and John 21:15-17.