Well I guess we're all suspect then. Therefore, we ought to crack a history book to see what was meant from the very beginning by the word "Church." And then we're back again to Holy Catholicism.
Actually, we are not... to crack the history books takes us back to Jerusalem, to Jewish Jesus and his Jewish Apostles. Who were used to going to synagogue and those type of traditions. They also were very free form and non-codified with no liturgy and no class of clergy. The met in house groups and ate meals together prior to remembering Jesus via communion (Having a full meal before communion is emphasized very clearly in scripture.... but apparently does not fit well within the Roman corporatized structure of its church... and god forbid they would spend money to feed people).
They were a grass roots movement that was the inheritance of Jews that believed which later spread around the world.
Rome was the absolute enemy of Jesus and especially the Apostles because Rome had invaded Israel and occupied it, thus placing the empire under a perpetual curse by God. You also have to come to grips with the fact that being a Christian in Rome for the first three centuries after Christ was punishable by death. Many Christians lost their lives in the arena and were crucified by Romans because of their faith.
Jesus nor the apostles practiced sacraments, believed in transubstantiation (which would have been an abhorrent practice to them based on Jewish tradition), etc.
No mater how you look at it, Rome was never in their picture...
FYI, I take great offense on behalf of God when mankind take it upon themselves to declare something Holy. The only thing holy is that which God declares holy to him.