By your own post: “non-Catholic Christans…are joined in an imperfect manner to the Church.”
You’ve said two things I agree with:
- We are Christians.
- We are joined to the Church. (you did not say the Roman Catholic Church).
If we are Christians and joined to the Church, how can you say that we are not a part of the body? In so doing, it is Roman Catholics who break the spirit of the scripture Paul articulates in 1 Corinthians 12. Even the teachings of the Roman Catholic Church itself are against you on this matter. Either we are brothers and sisters together in Christ or we are not. If we are not, it is not because we protested the authority of the Church, it is because you have dismissed us. For as much as we may disagree over authority and a few other points of doctrine, we do not deny that we are still brothers and sisters in Christ. But the authority to make the declaration does not belong to the Roman Catholic Church, it belongs to God and God alone – not to Christ’s vicar on earth. The keys of hell may have been turned over to Peter, but not the keys to heaven. If Christ accepts us, and he does, then who are you or anyone else to turn aside that which Christ has accepted.
At minimum, it is arrogance. Beyond that, such a view itself borders on heresy.