Matthew's Aramaic authorship is only held by a minority of scholars. It was likely written in Greek as well.
As to your citing of a few Protestant "Scholars", sorry, the argument fails. We do not base our doctrine upon the words of men (like many Catholics do), but the words of Scripture. We may disagree on some aspects; but, the Lord designed it that way. It's called "iron sharpening iron." Regarding the identification of Peter with the Rock, besides that one verse, where do you see it. Show me Bible. Not man's opinions. Where is Peter named as head of the church? Where is he in Rome? Where does ANYONE proclaim his Primacy or Rome's Primacy for that matter?
Rome's claim to Primacy came late. The forgery "The Donation of Constantine" tried to undergird the claim. People bought it. Some of those who sat in seat of Pope were rather notorious. Doctrine in Catholicism sways with the times. Stick to the Bible. Not an organization. It doesn't change, even when Catholics and Protestants do.
FWIW, other than James, "the brother of Jesus", the Apostles did not stay at any church they helped start as Bishops. IOW, the Apostles were missionaries.
Matt 16:18
Doctrine doesn't "swing with the times." If you think you can prove the Catholic Churfch has changed Doctrine - have at it. Men far more learned than you have tried and failed for centuries.
Your idea of what the Bible is is deficient and your understanding of it woefully wrong.
Begin by telling us your understanding of how the New Testament came into existence.
You even appear to think the Lord designed Scripture so it would invite controversy and disagreements.
BTW, where does your authority come from that allows you to reflexively gainsay protestamt scholars because they do not agree with your personal opinion?
These are educated men..and your theology degree is from what University - and they hold positions of authority as Seminary Professors - and you teach where? - and they beleive they are guided by the Holy Spirit