As I said, that's off topic when discoursing with Orthodox Christians, because we never had a Pope telling us what to do. The idea of Papal Supremacy was never part of the Eastern churches.
Look who agrees:
The East never accepted the regular jurisdiction of Rome, nor did it submit to the judgment of Western bishops. Its appeals to Rome for help were not connected with a recognition of the principle of Roman jurisdiction but were based on the view that Rome had the same truth, the same good. The East jealously protected its autonomous way of life. Rome intervened to safeguard the observation of legal rules, to maintain the orthodoxy of faith and to ensure communion between the two parts of the church, the Roman see representing and personifying the West...
In according Rome a ‘primacy of honour’, the East avoided basing this primacy on the succession and the still living presence of the apostle Peter. A modus vivendi was achieved which lasted, albeit with crises, down to the middle of the eleventh century (Yves Congar, Diversity and Communion (Mystic: Twenty-Third, 1982), pp. 26-27).
"The problem of Sola Scriptura being an inconsistently held doctrine that allows for all of the divisions that Protestantism has, that's on topic.
The use of the term "Protestantism" by Catholics is basically meaningless, being typically so broad you could fit a Unitarian Scientology Swedenborgian 747 in it.
And the problem with democracies is that that it allows for all of the divisions that America has, and therefore the founding fathers were wrong and we need a sovereign monarchy, rather than letting the people choose who is following the Constitution.
And the problem with 1st century souls - consistent with the Catholic model for validity - was that they rejected the valid historical magisterium, and followed itinerant preachers whom the former rejected, and presumed to establish their Truth claims upon Scriptural substantiation in word and in power.
The premise that division due to a practice means such is invalid is itself invalid, and SS does not claim to prevent division, or need to. But does it
enable strong practical core unity among those who most strongly hold to Scripture as the wholly inspired and accurate word of God, which I believe SS requires. It was because of common strong consent that the modern evangelical movement arose, and even in the diluted sense of the term is still more hated by liberals then Catholics overall.
For apart from the limited unity in Catholicism, which is largely on paper, survey after survey testifies that those whom Catholicism counts as members widely disagree with each other, and tend to be mostly liberal on Biblical views. As is Catholic scholarship in the West.
SS as I support it, simply refers to a sole infallible authoritative source as being the standard for faith, versus a mortal or office of such, and as sufficient in formally and materially providing what is needed for the Christian faith.
This does not marginalize the need and authority of the teaching office of the church, which Westminster upholds, but not as possessing ensured perpetual magisterial infallibility, but veracity rests upon upon the degree of Scriptural support.
Of course, the apostles also added to what was written, speaking the word of God orally as wholly inspired of God, and which also could include new revelation, neither of which do I see Catholicism doing, while its claim to oral tradition being the word of God is akin to that of Judaism. Both have a specious claim to oral tradition in the light of what is written as wholly inspired of God.
"You claim the Scripture is complete, but it can't even contain the finite amount of things Christ said while on earth, much less all of the Truth. And if it were complete, it would have come prepackaged with the Canon.""
As your premise is false then so is your conclusion. SS does not and need not contain all there is to know in the realm of faith, nor can you say Oral T. provides it.
But God has always provided what man needs to know to be saved and obey Him, though giving more grace according to His will. Scripture only needs to provide what God has chosen to provide man with for the life of faith in this era.