How about a litany of those reasons?
bttt
Okay.
Prayers to Mary.
Prayers to Saints.
Confession to a Priest instead of directly to God.
The Immaculate Conception.
The Assumption of Mary.
The "Hail, Mary" recited as a prayer or mantra.
The Marian doctrines - specifically all of the "cooperation" or "Co-Redemptrix" stuff.
Purgatory.
Justification (though I think the Lutherans and Catholics are coming together on this one).