Sorry, OrthodoxyorDeath, I seem to have propelled myself into a debate, and done so without knowing the rules. While not wishing to offend I note much of the debate is expressed frankly, even to the point of rudeness.
When I was a young man I listened to the clergy and heirarchs teaching me. Maybe it was remiss to have failed to ask which Church Fathers said this or that. For myself I accepted that they understood and taught according to an Orthodox mind. And that they were giving a rule of them in order, perhaps, to safeguard me. Now they are dead I cannot quizz them.
That schism leads to further schism, seems self evident. Even a superficial study of recent Greek and Russian Church history demonstrates this all to clearly.
Sorry, I have not answered your other point. (Had to answer door only to find a pair of unwelcome so-called Jehovah Witnesses