Rather, Rome has presumed to infallibly declare she is and will be perpetually infallible whenever she speaks in accordance with her infallibly defined (scope and subject-based) formula, which renders her declaration that she is infallible, to be infallible - including "Petrine authority) - as well as all else she accordingly declares.
Mormons, Muslins, Grahams, Sharptons are like Muslim imams, and Hindu shamans, basically semi-literate street preachers giving sacred scripture-written and the oral tradition- their “own” interpretations even though this flies in the face not only of preeminent Catholic theologians after whom major universities have been named...So stay with the “indwelling of the Holy Spirit” while at the same time denying the work of the Holy Spirit that guided the early Church Fathers who put together and interpreted the Bible
You attempted polemic versus Scriptural warrant is nothing more than the appeal to authority by scholarly credentials and historical descent, yet Catholics of scholarly credentials also provide evidence contrary to the propaganda of Rome regarding Peter.
Meanwhile, the church began with the common people following itinerant and mostly unlettered preachers who established their Truth claims upon Scriptural substantiation in word and in power, and who reproved by Scripture the historical magisterium which rejected them. .
And it was by God often raising up men from without the magisterium to reprove those who sat in power that faith was preserved among a relative remnant (as usual), and thus the church began contrary to Rome, establishing their Truth claims upon Scriptural substantiation, and not on the basis of perpetual assured veracity of office.
You can call this “polemic” for all you want, but the sola scriptura adherents are thankfully a fast-disappearing fringe group confined mostly to North America and scorned even by eminent Protestant theologians. Playing street theologian won’t do. This is the stuff for the Billy Grahams, Joel Osteens, Mormons, Jehovah’s Witnesses, Jim Jones, David Koresh-type congregations.
Petrine authority is now accepted not only by the long line of Catholic intellectuals, historical and ancient language scholars, theologians, and major university departments across the world but also, as you have been repeatedly reminded on this thread, by a number of illustrious Episcopalian (e.g. Henry Newman) and Protestant theologians who have converted to Catholicism including the President of the National Evangelical Theological Society (Francis Beckwith) to say nothing of the saints or martyrs.
We have been debating on this thread for quite some time and we now know why its next to impossible to get through to this crowd whose best arguments is to embrace a lazy form Christianity sans any need for belief in the Eucharist, the Mass, the Sacraments, etc. Theirs is a “Church” with 35,000 denominations and where each corner street Foursquare congregation stylized as First this or First that, or Reformed this or that or First AME or First ABC, or First XYZ are all valid “expressions” of the Word of God. They have in common with the pastors of the “gay-marriage” congregations their denial of Petrine authority. They fail to see how inherently contradictory and absurd such a proposition of multiple interpretations are. Sadly, these folks can only be viewed as Oprah-type students of the Word of God. Let’s pray and hope they will do some serious reading.