The Roman See did not excommunicate itself. The excommunications were mutual, from what I recall in my history studies… The issue was Petrine authority, which the Orthodox Churches refused to accept. It was not accepted because it was not part of the original deposit of faith, there was no historical precedent for it. So, while we all agree (Catholic and Orthodox) that the eastern churches are the oldest, and that there are ancient liturgies that inspire and console with great effect in the Orthodox churches, we part company on the issue of authority. And on the issue of the Faith, the Nicean Constantinoplian Creed and the phrase being added by a Pope after several earlier Popes condemned it. Age alone does not establish Orthodox superiority over the Petrine See. Jesus Christ did not establish a democracy with voting blocks among the Apostles and their successors. Exactly all of the Apostles successors, not just the successors of one of the two Sees that Peter established.
No argument here. All of the ordinations and sacraments of the Orthodox Churches are recognized as valid. But apostolic succession alone does not establish Orthodox (or even conciliar) authority over Petrine authority. And until there is some resolution concerning the nature of the Petrine office, both the Catholic and Orthodox Churches will remain less than complete. The Orthodox Church is whole. If the Catholic Church feels it is less than complete, by all means have her reject the innovations which caused the split and reunite with Orthodoxy.
Benedict XVI has calledd the churches of the East and West two lungs with which the whole Church must again breathe. For the past 1000 years or so, Catholics and Orthodox have been breathing with only one lung. The Bride of Christ is not deformed - her body is in tact. The Orthodox Church is not missing a lung. The split has certainly hindered the unity of our shared faith. Without assigning blame, each of us can concede this point.
I’m glad to see that you acknowledge the apostolic tradition remains alive in the West, despite the separation. I acknowledge that Popes of Rome have a valid succession back to St. Peter (as do the Patriarches in the Church of Antioch, which St. Peter also founded). As far as Rome holding Apostolic Tradition, they have maintained some of what the Apostles taught, but they have also lost some of the traditions of the apostles (like Canon 69 of the Apostles - dropping the Wednesday Fasts & Canon 70 of the Apostles - we cannot celebrate festivals with the Jews, Orthodox Pascha (Easter) never falls on any Jewish feast day, but the Catholic Easter does) come up with tradition of their own which is completely different than what the Apostles taught (Papal Infallibility, Filioque, the current Roman Catholic understanding of Original Sin, etc.).
Peace,
-Robert