Well I think one stark fact has to be recognized in the middle of our controversies...
That BOTH the evangelical AND the Roman Catholic AND the Orthodox communions have Christ visibly working in them.
I think this ought to move us to humility on the way to trying to understand....
Yes, you are correct. Like I said, there is only one church. Anyone who is Christ’s is attached to the one church.
Now, we may disagree on authority and visiblity of this church.
But inasmuch as anyone is saved, it is because he is a member of this one church.