The fact of the matter is that the Church has venerated Saints subject to baptism of blood for 1700 years, so we can be certain that at least baptism of blood is true. The feyneite doctrine denies this basic fact, which if enough for proving that this doctrine is incorrect. We have already covered far than enough material to prove that feyneism is a false doctrine.
My primary concern was proving that the catechumens who died as martyrs are indeed Saints.
Lazarus,
I have never seen a Catholic who does not believe in BOD/BOB, "Feeneyite" or otherwise,
also reject anyone held to be a Saint by the Church. You might find some people who believe there hasn't been a true Pope in 1000 years, 500 years, or since Pius IX or Benedict XV, etc. who reject certain Saints, but the average Catholic who does not hold BOD does not say such a thing
The Catholic who does not hold BOD simply believes that those Saints, whose recorded life seems to indicate that they died without the actual Sacrament, actually received the Sacrament of Baptism before death. That's all. (Personally, I think Benedict XII,
Benedictus Deus, 1334 seems to confirm this)
In fact, even if one was to believe that BOD/BOB are
de fide, he is under
no obligation to believe that any Saint at all died without the Sacrament of Baptism administered with water. There is no dogma being denied there, because any recorded life of a Saint which seems to indicate that they died without the actual Sacrament is a historical account which may or may not contain historical error. Many, probably most, of the lives of the Saints have been edited, errors removed, unverified claims omitted, etc. over the centuries