MichaelLewis:
DeFide:
I’m not so much asking about the salvation of such people. I understand that the church would say that so long as they really believe what they proclaim, they may not be damned. I’m just wondering about their status as Catholics.
Ah! I see. Here’s what you may be interested in:
…Thus, when Trent and other ecumenical councils employed anathema sit in regard to doctrinal matters, not only was a judicial penalty prescribed but a doctrinal definition was also made. Today, the judicial penalty may be gone, but the doctrinal definition remains. Everything that was infallibly decided by these councils is still infallibly settled.
This has consequences under current canon law. Those things that are both divinely revealed by God and proposed as such by the Church cannot be obdurately denied or doubted without the offense of heresy (CIC [1983] 751). Heresy
does carry a penalty of automatic (
latae sententiae) excommunication though this does not apply to those who have never been members of the Catholic Church (can. 11), and even then there is a significant list of exceptions (can. 1323).
See full context here:
catholic.com/thisrock/2000/0004chap.asp
Can. 1323 No one is liable to a penalty who, when violating a law or precept:
1°
has not completed the sixteenth year of age;
2°
was, without fault, ignorant of violating the law or precept; inadvertence and error are equivalent to ignorance;
3°
acted under physical force, or under the impetus of a chance occurrence which the person could not foresee or if foreseen could not avoid;
4° acted under the compulsion of grave fear, even if only relative, or by reason of necessity or grave inconvenience, unless, however, the act is intrinsically evil or tends to be harmful to souls;
5°
acted, within the limits of due moderation, in lawful self-defense or defense of another against an unjust aggressor*;
6°
lacked the use of reason, without prejudice to the provisions of cann. 1324, §1, n. 2 and 1325;
7° thought, through no personal fault, that some one of the circumstances existed which are mentioned in nn. 4 or 5.