Other RCs disagree with as much certitude. Such is an example of the interpretive disagreement seen among RCs.
daniel212:
The disagreement is among laity, who really are doing nothing but getting a tit for tat for nothing. It might be debated among a few theologians but even then, I have not heard much theological debate on that question amongst theologians as well. Those who are validly baptized are indeed Christian, while being deficient in terms of holding the completeness of Apostolic Catholic orthodox faith. What I am citing is essence what Officially the Catholic Church teaches. Disagreements among Catholics here on this site, or on other sites, who make themselves more Catholic than the Pope is in reality people who think too much of themselves. In that sense, they are behaving in some sense like your Protestant cohort.