You are correct in that the first Church was not Catholic as we now use the term. Worship of Mary did not commence for hundreds of years. In the beginning followers of Christ had one Father and no Pope. The Catholic Church did preserve much of Scripture but it added a raft of practices never imagined by the Apostles. But, anti-Christ has learned that too many people worship Mary so it becomes necessary to have an anti-Mary movement as well. But, God is not mocked - whatever these people gain in anti-God movements, they will rue when they stand before Him.