You know perfectly well that that is not what I am telling you. You are attributing words and statements to me which I never wrote. That is unworthy of you.
The basic form of the Mass is described in the Gospel accounts of the Last Supper and in St Paul's First Epistle to the  Corinthians. I also gave you Justin Martyr's account of the Mass in the Second Century AD. The same basic structure is found in the Mass today as existed in apostolic and post-apostolic times: taking bread and wine, giving thanks, blessing/consecrating the elements, anamnesis and communion/eating and drinking the Body and Blood of Our Lord.
You say Modern Catholic scholarship as though all modern Catholic scholars supported the Protestant "once and for all time" 'tenet'. I bet if you named them they would be no more than a handful of progressives and/or dissidents as well.
You need not take "Rome's" word for anything if you don't wish to, orthodox Catholics most certainly do.