I suppose I’m having trouble grasping what you’re getting at. Does it have to do with Peter representing Jesus on earth? If so, that leads me to another question: Why do we need someone to be a “representative” for Christ, when we all have the image of God in us and we are all part of the Body of Christ? I hope you don’t find my questions bothersome; I just want to know exactly for what reasons Catholicism elevates the Pope so. he is the first among equals and he is the head of the See where Peter and Paul were martyred, and he occupies the last See founded by Peter; I understand all that.
No, I wasn’t really trying to get at the concept itself like that. I was trying to express two ideas that have retained their hold on my intellect:
(a) That I find it unproblematic to say both that - as the New Testament clearly teaches - Christ is the Church’s Cornerstone,
and that our Lord was referring to Peter (“Petros”/“Cephas”/“Rock”) when He said, “Upon this rock I will build my church.” I feel that the same nuance that makes room for the Incarnation itself and that - rightfully! - justifies the nuances of Orthodox ecclesiology,
also makes a juxtaposition of “Christ-as-Cornerstone” with “Peter-as-Rock” truly unproblematic…
unless we succumb to rationalism, and I truly do not think that the western intellectual tradition or scholasticism is or must be rationalistic.
(b) That I have always been genuinely confused how Peter could possibly
not be “the rock” in Matt. 16:18. When I was younger, I read much Catholic-Protestant dialogue on this one, and I really came away convinced that Peter is “the rock.” I read all about Greek and Aramaic, Petros vs. petra, the Old Testament allusion of “the keys to the kingdom” in Isaiah 22, etc.
I have
not looked into Orthodox-Catholic dialogue/debate on the matter, but the thing I personally keep coming back to is that it would be,
at best, really counterintuitive if Simon son of Jonah
weren’t the rock, since that’s what the new name he receives (“Petros”/“Cephas”) literally
means.
But I’m not a theologian, linguist, or historian, so I fully realize and acknowledge that I could be dead wrong. It’s just that last point that has always - at least up to this point - convinced me.
Admittedly, the history of Christianity in general is my weak point.

I have much, much much yet to learn.
Me too!
I have never met a Melkite in my LIFE so I’ll have to ask folks on here or somewhere online.
I hope you get a chance to meet some Melkite Catholics soon. The ones I’ve met are wonderful and devout (there’s a Melkite parish in my city whose Liturgy I once attended: Holy Resurrection Melkite Catholic Church).
Yes, I once had a person here on CAF not too long ago actually try to tell me (as a argument meant to somehow illustrate the reasonableness of Papal Infallibility) that the Pope could organize a gay pride parade at the Vatican and it would not damage his infallible teaching.
That person was correct, dzheremi. Recall that papal infallibility ensures that the pope’s teaching is absolutely free from the possibility of error
only when he solemnly, formally, and authoritatively pronounces
as dogmatic and binding on the universal Church a matter of faith and morals.
While I think it’s beyond safe to say that no pope will ever “organize a gay pride parade” at the Vatican, papal infallibility in no way makes such an occurrence impossible.