I searched Scripture for the word "advocate" and the many times it is used, not once is it said about Mary.
John 14:16
And I will ask the Father, and he will give you another advocate to help you and be with you forever—
John 14:26
But the Advocate, the Holy Spirit, whom the Father will send in my name, will teach you all things and will remind you of everything I have said to you.
John 15:26
[ The Work of the Holy Spirit ] “When the Advocate comes, whom I will send to you from the Father—the Spirit of truth who goes out from the Father—he will testify about me.
John 16:7
But very truly I tell you, it is for your good that I am going away. Unless I go away, the Advocate will not come to you; but if I go, I will send him to you.
1 John 2:1
My dear children, I write this to you so that you will not sin. But if anybody does sin, we have an advocate with the Father—Jesus Christ, the Righteous One.
Why must anyone pretend that we need anyone else BUT Jesus Christ as our Advocate?
If they don't know Him as their Advocate they will lean on something else.....thus Mary, and the Priesthood and Rome...which as we know keeps them from just that. Jesus becomes a figurehead at best and then usually after the fact of everything else.
I was just wondering if I've ever seen them come to the defense of Christ?
IMO...without their Priesthoood/Mass and worship of Mary, and their role of Peter, the Catholic Church would completely fall. Thus any arguements about those false teachings and practices will be fought mightily and have for years. It's what their religion is based on and foundation of.