Even if that were true (see how the Orthodox feel about the filioque, or the Latin understanding of Original Sin, or the permissibility of divorce and remarriage) it would still be a disagreement regarding fundamental dogma. The absolute jurisdictional power of the Pope, and his doctrinal authority, are dogmas of the Roman Church defined to be held definitively, de fide, by all Christians. Hard to see what could be more fundamental than that!
I could name quite a few
more fundamental dogmas:
(and, of course, it goes without saying: to which the EO conform perfectly to us)
Belief in God’s existence
Belief in God’s omnipotence, omniscience, omnipresence
Belief that God is Love
Belief that God is creator of all that is material and immaterial
Belief in One God, who is Father almighty and Creator of Heaven and Earth.
Belief that the world was made for the glory of God and that He freely chose to create to show forth & communicate his glory, his unlimited love and goodness
Belief in Heaven
Belief in Hell
Belief that “God upholds and sustains creation, is actively involved in its unfolding and development in time, and is the loving master of the world and of its history” (CCC 301)
Belief in God as the first cause of all creation
Belief that Science and Revelation cannot contradict
Belief that God created man and woman in His image and likeness and that we are the summit of creation
Belief in the Eucharist as the Real Presence of Christ
God deliberately created man, male and female, in his image and likeness and placed him at the summit of creation
Belief that man and woman have been created, "which is to say, willed by God: on the one hand, in perfect equality as human persons; on the other, in their respective beings as man and woman. “Being man” or “being woman” is a reality which is good and willed by God: man and woman possess an inalienable dignity which comes to them immediately from God their Creator. Man and woman are both with one and the same dignity “in the image of God”. In their “being-man” and “being-woman”, they reflect the Creator’s wisdom and goodness. (CCC 369)
Belief that while the creation accounts in Genesis may use symbolic language, it teaches profound truths about creation, man, the fall, evil, and the promise of salvation. (289, 389-90)
Belief that the devil, a fallen angel, is real and that he is the ultimate source of all evil. (391-5, 413-15)
Belief that Adam, as the first man, freely chose disobedience to God, resulting in the loss of man’s original holiness and justice, and brought about death. We call this state of deprivation original sin. (416-19)
Belief that the victory of salvation won by Christ is greater than our loss due to sin. (420)
Belief that the question of evil is a profound mystery. Every aspect of the Christian message is in part an answer to the question of evil. (309)
Belief in Jesus Christ, the 2nd Person of the Trinity.
Belief in Christ’s divine sonship is the center of the apostolic faith. (442)
Belief in the title “Lord” indicates that Jesus is God himself. (446, 455)
Belief in Jesus is the “Christ,” the Messiah prophesied about in Scripture in the Old Testament. His coming brought about the promised liberation of Israel and mankind from the bonds of evil and death. (422-4, 430-3, 436, 438-9)
Belief that Christ is the perfect, full & definitive Revelation of God. After him, there will be no other public Revelation. (73)
Belief that Jesus, the Word of God, became man to save us by reconciling us with the Father, so that we might know God’s love, to be our model of holiness, and to make us “partakers of the divine nature” (2 Peter 1:4). (457-60)
Belief in the Incarnation (the Son of God come in human flesh) is the distinctive sign of the Christian faith. (463)
Belief that Jesus assumed human form in the womb of the Virgin Mary, his mother. The conception of his human body was accomplished by the action of the Holy Spirit, and not by natural generation from man, although he is truly conceived of Mary’s flesh. (456, 466, 484-6, 488, 496-8)
Belief that Jesus is fully God, and fully man. As God, he has always existed with the Father and the Holy Spirit. At a specific point in history, he assumed human form and became man. He retains both of these natures fully, even now in heaven. (464, 467, 469-70)
Belief that Through his suffering and death, Jesus redeemed man once & for all, freeing him from slavery to sin, evil, and death. It is for our sins that he died. (571-3, 619, 1019)
Belief that “Jesus freely offered himself for our salvation. Beforehand, during the Last Supper, he both symbolized this offering and made it really present: ‘This is my body which is given for you.’” (621)
Belief that as a true man, Jesus fully experienced death. (624-7, 629)
Belief that Jesus did not abolish the Law of the Old Testament, but fulfilled it with perfection, revealing its ultimate meaning and redeeming the transgressions against it. (592)
Belief that the Resurrection was a real, historical event. It is the basis for our faith in all Jesus revealed to us. Jesus rose from the dead, body and soul, early on the Sunday morning after his death. He walked the earth for a brief time, and there were many witnesses of his appearances. (638-9)
Belief that at the same time as the Resurrection was an historical event, it remains at the heart of the mystery of faith as something that transcends and surpasses history. (647)
Belief that after the Resurrection, Jesus’s authentic, real body also possesses new properties of a glorious body. (645)
Belief that the Resurrection is the principle and source of our own future resurrection. (655)
source for much of the above
cont’d