Us prots are "undercover Catholics"! Yea!
I've been saying that for years. The word "Catholic" simply means "universal." 1 Cor 12. There is one body, not a multitude of bodies. The fact that there are some parts that are in schism doesn't erase the fact that there is one body.
And yes, proddies (used in the most generic sense) are part of that one body and their eyes are illuminated, to one degree or another, by the Light of Christ.