Oh really?
2675 Beginning with Mary’s unique cooperation with the working of the Holy Spirit, the Churches developed their prayer to the holy Mother of God, centering it on the person of Christ manifested in his mysteries. In countless hymns and antiphons expressing this prayer, two movements usually alternate with one another: the first “magnifies” the Lord for the “great things” he did for his lowly servant and through her for all human beings29 the second entrusts the supplications and praises of the children of God to the Mother of Jesus, because she now knows the humanity which, in her, the Son of God espoused.
2676 This twofold movement of prayer to Mary has found a privileged expression in the Ave Maria:
http://www.vatican.va/archive/ccc_css/archive/catechism/p4s1c2a2.htm
Have you ever heard a Protestant raise “supplications and praises” to a cross or the Bible? Have you ever heard a Protestant claim they could pray to anyone other than the Father in heaven?
Really.