Let me begin by saying “hogwash”, first, here’s Lucentius, papal legate to Pope St. Leo speaking at the council of Chalcedon:
I am sorry to hear that you think the Acts of the Second Council of Constantinople are ‘hogwash’, but they are clear as day in affirming that they felt authoritative without Vigilius. Similarly, I am sorry to hear that you think that widely attested historical events such as the schisms which occurred in Milan and Aquileia as a result of the Second Council of Constantinople are ‘hogwash’, but unless you should undertake a very serious attempt to revise history, I am afraid that those events shall remain accepted as actually having happened.
The Council in its 8th session specifically mentions the situation with Vigilius, referring to him dishonorably simply as ‘Vigilius’ (stripping him of all titles and honorifics), and rebuking him for his intransigent attempt to rule on the issue of the three chapters without the synod, by citing the example of the apostles and fathers who all worked synodally.
(3)It happened that Vigilius was staying in this imperial city and ought to have taken part in everything that was mooted concerning these Three Chapters, and had often condemned them both orally and in writing; afterwards he also agreed in writing to attend the council and discuss these Three Chapters together with us, so that we might all produce in common a decree corresponding to the orthodox faith. So our most pious emperor, in accordance with what had been resolved among us, urged both Vigilius and ourselves to meet together, since it is appropriate for priests to impose a common solution on common problems. Accordingly, we necessarily besought his reverence to fulfil his written promises, saying that it was not right that the cause of stumbling arising from these Three Chapters should increase and thereby unsettle the church of God. But when, although often invited both by us all and in addition by the most glorious officials sent to him by the most pious emperor, he postponed heeding these requests and admonitions and attending, we recalled to his memory the great example of the apostles and the traditions of the fathers. For even though individual apostles abounded with the grace of the Holy Spirit so that they did not need the advice of others over what had to be transacted, yet they had no wish to decide in any other way the question that was mooted, whether the Gentiles ought to be circumcised, before they met together and each of them confirmed his statements from the testimonies of the divine scriptures. Accordingly it was in common that they all pronounced judgement on the matter, writing to the Gentiles and stating in a declaration that ‘when we all assembled together it seemed good to the Holy Spirit and to us to impose no other burden on you except these necessary things, that you abstain from what has been offered to idols, from blood, from what has been strangled, and from fornication.’
(4)The holy fathers also who convened at various times in the holy four councils followed ancient precedent and decreed in common on the heresies and problems that had arisen, since it is certain that it is through joint examination, where there is expounded what needs to be discussed on both sides, that the light of truth dispels the darkness of lies.
Now, please take note that Lucentius states in no uncertain terms that an “ecumenical” synod cannot take place without the authority of the Apostolic See, i.e., without his specific cooperation and/or consent a synod cannot be regarded as ecumenical, that is to say that of all the bishops throughout the world his confirmation and cooperation is absolutely necessary. Even Emperor Justinian is of a like mind when he said, and I quote:
The same Justinian who wrote, “We direct that all innovations shall be annulled and that the ancient customs, and the ecclesiastical canons, which have been in force to this day, shall also be observed throughout all the provinces of Illyria, and if any doubt arises, it should be referred to a church assembly and its holy judgment, with the knowledge of the reverend bishop of the holy faith, situated at Constantinople, which city enjoys the prerogative of Ancient Rome”(Cod. Justin. I.ii.6.)? Or what about where Justinian calls the Great Church in Constantinople the, “mother of all, head of others” (Cod. Justin. I.ii.24)? And what about this proclamation of Justinian, “Since therefore [Vigilius] has acted in this way, we have pronounced that his name is alien to Christians”? Do you agree with those statements of Justinian as well?
I would also like to add that those bishops present at Constantinople were demographically Eastern, i.e., there was no Western representation at the council, as such, how can a council be ecumenical when both East and West were needed to give it universal appeal, to quote Adrian Fortesque:
He then goes on to say:
What Fortescue writes is reasonable, because he specifically points out that the papal ratification is necessary in the sense that the Pope is a member of the college of bishops, as the Pope too needs the consent of the Church. He also does not seem to argue for the sufficiency of papal ratification. Of course, from the Orthodox perspective, the Pope is no longer a member of the college of bishops, so his ratification is neither necessary nor sufficient at present.