The consistency of Christians’ belief for two millennia puts your skepticism at a disadvantage.
There is a consistent inconsistency on this and the other topics near and dear to Roman Catholicism.
Recall, NONE of the writings of the ECFs are in the canon. Rome had a chance to do so at Trent when it finalized its canon but DID NOT add any of these. That is very telling.
Check....your move.
Elsewhere the Lord, in the Gospel according to John, brought this out by symbols, when He said: “Eat ye my flesh, and drink my blood;” describing distinctly by metaphor the drinkable properties of faith and the promise, by means of which the Church, like a human being consisting of many members, is refreshed and grows, is welded together and compacted of both,—of faith, which is the body, and of hope, which is the soul; as also the Lord of flesh and blood.
Clement of Alexandria. (1885). The Instructor. In A. Roberts, J. Donaldson, & A. C. Coxe (Eds.), Fathers of the Second Century: Hermas, Tatian, Athenagoras, Theophilus, and Clement of Alexandria (Entire) (Vol. 2, p. 219). Buffalo, NY: Christian Literature Company
It means nothing even if it were true.
Many other religions have been around longer than Catholicism. Do we have to accept them as true too just because they've been around a long time?
You have no knowledge of those 7 Catholic churches in Asia that the angel told John to WRITE to??