That is your error. And it’s not the Catholic position.
Your position is an interpretation that contrary to the teaching of the Catholic Church.
“Finally we do not separate the Pope, even minimally, from the consent of the Church, as long as that consent is not laid down as a condition which is either antecedent or consequent.” - +Gasser
Ahhhh! Now I see the source of your misinterpretation. You are equating “consensus” with “consent.”
Consensus is something different from consent. Consensus has to do with the Church’s role as
witness to the Faith. The Church, which is infallible, and the bishops which exercise the infallibility of the Ordinary Magisterium, are witnesses to the Sacred Tradition. It is necessary for the Pope to determine this consensus by the appropriate means and is not permitted to depart from this consensus in his judgment that results in the
ex cathedra decree.
Consent, on the other hand, has to do with the Church’s role as
judge on a matter of Faith. This, the Church through her bishops does not do during the Pope’s exercise of the extraordinary Magisterium. The Church through her bishops, knowing she cannot settle a particular doctrinal or moral issue, appeals to the Pope to make the final judgment on the issue.
So whereas the Church’s
consent is not necessary for the determination of the Truth during the Pope’s exercise of the Extraordinary Magisterium, her
consensus is indeed necessary for that same determination. In other words, for an
ex cathedra decree, the Pope as
judge exercises the infallibility of the EXTRAordinary Magisterium, whereas the bishops as
witnesses exercise the infallibility of the ORDINARY Magisterium.
This is different from what occurs during an Ecumenical Council. During an Ecumenical Council, the infallibility of the EXTRAordinary Magisterium is exercised by ALL the bishops, not the Pope alone - i.e., ALL the bishops are judges, not just the Pope.
Blessings,
Marduk