About a hundred years ago, an Episcopal Bishop gave the following advice to the fiercely Anglo-Papalist Episcopal priest Fr Paul Wattson, founder of Graymoor*:
You accept the whole teaching of the Roman Church save the single detail of the repudiation of Anglican Orders. . . This proposition is an impossible one for a clergyman of our Church. My advice is that, in the interest of single-minded honesty and devotion to duty, you make the choice between the two Churches. You cannot serve either the Papal Church or the Protestant Episcopal Church well if you try to serve both at the same time. Either give up belief in a divinely established Papacy and in Roman dogmas. . . as one must do who is a consistent and contented Anglican; or else give up Anglican Orders, make an unqualified submission to the Latin Church, and be a good Roman Catholic. I have no hesitation in saying that if I were in your position I should choose the latter alternative. This would seem to be the natural outcome of the line of development you have adopted.Nothing has changed, and this advice applies to any and all Anglo-Papalists. It is simply absurd to say one believes in papal supremacy but not to accept a definitive pronouncement from that Office which concerns oneself intimately and explicitly.
The Episcopal Bishop (Kinsman of Delaware), interestingly enough, eventually did follow that course, renounced his orders, and died a Roman Catholic layman in 1944.
Tobias Stanislas Haller, with a tip of the hat to Mimi
whose post on Bishops Broadbent and Buchanan prompted this thought
*See my paper on Fr Wattson and Dr William Reed Huntington, for more on the fascinating characters involved, and the very different understandings of church unity they espoused.