There is NO such Church as the "RCC".
If you are referring to "Roman" Catholic - this refers to the Liturgical Rite - NOT the name of the Church.
There are some TWENTY Liturgical Rites that comprise the Catholic Church and they are ALL in full communion with each other. They include the Maronite, Byzantine, Melkite, Alexandrian, Coptic, to name a few.
NONE of them are "Roman" Catholic - but they are ALL part of the Catholic Church, which is the official name. So - maybe you should do your homework, as I suggested earlier - and you won't continue to make these types of blunders . . .
PS - The Catholic Church was started by Christ - not a mere man.
On the other hand - ALL of your Protestant sects were started by MEN from the 16th century forward.