Orthodoxy doesn't tie its faith to the emperor any more than Rome did. In fact, there were times post Christianization of the Emperor when the Emperor persecuted the church. This reference is hardly ancient, and this Patriarch isn't even canonized as a Saint. Unlike in Rome, the entire Church cannot be corrupted through the concentration of Authority into one human being.
Rome did crown a "Roman Emperor" in the west, and it was this Holy Roman Emperor that eventually pressured The Roman Bishop into corrupting the creed and thus subject to anathema.
Besides that, flying in the face of all precedent in Church history, The Bishop of Rome actually believed that he could depose and select bishops and Patriarchs by his own whim.
What else? Calling crusades, sacking the churches in the east, stealing relics, killing Orthodox Christians, torturing heretics, the list goes on.
In fact, it is probably the fault of Roman Catholicism that the west has become secularized, because it's scholastic theologians thought they were more clever and advanced than The Church fathers.
No, Papal supremacy certainly is a heresy, and if nothing else should act as proof of this sin it should be the reformation and the shameful state of the Roman church even today. Overrun by sodomy, apostasy, and all manners of evil.
No, The Roman church is cursed, and will be until they return to orthodoxy.
But come now, use good sense. Was the New Testament written in Latin or Greek? It was written in Greek. Our scriptures are in Greek.
Which church has gone through the most persecution? The wicked one has done everything they can to stomp out Orthodoxy, but we are still alive today and strong. The Papal church is infamous for persecuting the world, and I am sure that if they had the political pull to do so even today, they would be torturing those who do not submit to the bishop of Rome, just as they did even to many of our saints and martyrs. Even some of their own saints!
The Orthodox church maintains that it is Jesus Christ who is king over all Christendom, not The Pope of Rome, and it doesn't matter how may feet the Pope washes, and how humble he makes himself, as long as he claims supremacy over the whole church he has adopted the position of anti-Christ.
I cannot accept Papal Supremacy, and neither does the church. It never has.