The Catholic Church has traditionally not recognized a concept of “pan-Christianity” that would make Catholicism, for all intents and purposes, just another Christian denomination — maybe the most complete, maybe the oldest, but still, just part of the “Christian church”.
I didn’t say, or mean to imply, that you did. Anyone who professes Christ outside of the Catholic Church is in some sort of imperfect communion with the Church, whether they know it or not, or even whether they wish to be or not — you can’t decouple Christ from His Church. Similarly, you can’t decouple Christ’s sacraments from His Church. They are Catholic sacraments, even if the person partaking of them does not profess that the Catholic Church is the one true church.
I dealt with the special case of the Orthodox churches in my post above. They are only separated from us by schism, not by (material) heresy. They were true Churches from the beginning. The Protestant and evangelical churches were not. (I do realize that Anglicans consider themselves the continuation of the ancient English church. But if they are, then what are English Catholics in union with Rome?)
