This is a profound question! And at the heart of what we are discussing here...
we have the example of Saul, whom God tells directly 'why are you persecuting me?' , and where does HE send him? to the Church in Antioch to be baptised, where the scales fall from his eyes..
and we have the example of the apostles (someone led by God) sharing what Christ and the Spirit have taught them, and we have them choosing, training and approving (ordaining) men to take their place to continue to preserve and pass on the deposit of faith
and we have the Councils, of which the first in Jerusalem is the protptype.. so that in ending a division or strife within the Church it can prononce: 'It seems good to us and the Holy Spirit'... giving instruction binding on the whole Church.
Well you must stand where you do and follow whatever it is that you see. I was not there for those Councils so I won't speak against you, but you should not expect me to speak for you based on man's written history. I've been accused here of not believing in history, but that is not so. I simply refuse to treat history as greater than the "his story" of some man or men who lived and died long before I was born as being a basis for what I believe. I believe that God inspired men to write the Bible. The problem is that without a similar inspiration no man can correctly decipher God's message to men as it is written even in the scriptures.
The instruction, "It seems good to us and the Holy Spirit" when it applies it a good one, but I would not apply such words too easily as binding on the whole Church. On a few things more than once in my experience I have seen two or three gathered together in His name so that He really was there in our midst, but this has always [in my experience] been only with very small groups. The larger the group the less likely it was to be applicable. This is not because of the unwillingness of God, but because of people. Wishing that it were so doesn't change what most men, even believers, are altogether too often... that is: Not in His name. I have been too often one of those found Not in His name to say more on this.
On this we agree... almost always, strife between members of the body is brought about by sins on both sides.. but how does this rebellion of Korah apply in the Church? Jude warned us against those who fall into it..
This again is a very good point. i would argue however that it prefigures the split between the eastern (orthodox) churches and the western (latin) churches... The difference being that the apostolic churches DID follow the Lord, in fact competed with one another to see who would more faithfully preserve the deposit of faith that was given to them...
Happily though this division has been repaired (the two sticks made one) as Bartholomew I and Benedict XVI concelebrated the divine mysteries together some time ago... and this union continues to repair the damage between us...
Every step taken in the right direction is a good step, but until the final step is taken, it may in the end of the matter still all be for nought in the eyes of God.