I write simply to note the quote from John Henry Newman. The dispute here is clearly RC "inter se" and I will not comment on your internal theological/governance issues.

Newman had written in about 1837 (while C of E priest and tract writer/intellectual): "[M]y spiritual mother in whose womb I was conceived" was the Anglican church. See His "The Via Media of the Anglican Church". Newman had many things to say and in his long life, not always without heavy contradiction, or back-peddling once he swum the Tiber. Quoting him, even if "Blessed" by your church will not sway traditionalist RC, I suspect.

Both in his lifetime, and after, he was held by some RC both in Rome and England at arm's length as an Anglican mole in the red biretta of an RC cardinal. Some one who unlike Manning, hadn't gone full bore against his former church, and was still tainted.