Thanks to American Mother for her work with your question about the Greek. Given her points, I too would like to see how you translate it as "vile estate".
About your separate issue of "God my Savior", I believe you may find this article on catholic.com helpful. Immaculate Conception and Assumption. Pay close attention to the section "Fundamentalists' Objections". It begins, "Fundamentalists’ chief reason for objecting to the Immaculate Conception and Mary’s consequent sinlessness is that we are told that "all have sinned" (Rom. 3:23). Besides, they say, Mary said her "spirit rejoices in God my Savior" (Luke 1:47), and only a sinner needs a Savior."
The main point is that Catholics don't deny that Mary "needed a Savior". The way she was saved was simply different than the rest of us.
These are, I believe, all examples of poor catechesis; a common problem that plagues the Church. This isn't meant to disparage you; believe me probably about 95% of Catholics are taught about the Faith poorly. Pretty much all of us are "re-learning" our faith thanks to the tool of the Internet and other easily accessible sources of information.
This poor catechesis is the primary reason why so many, when they "pick up their Bibles and read for themselves" leave the Church. It's not that the Bible contradicts Catholicism; it's simply that many Catholics aren't taught how the two actually do agree!
I urge you, brother, to consider the possibility that you were simply taught erroneous beliefs about Catholicism (or you were given incomplete teaching) when you were younger, and re-examine the Faith today, learning what Catholics really do believe, and not what you think we believe.
The truly best way to do this is, ironically, on your own. Read catholic.com. Visit with a priest. Listen to programs like, "The Journey Home".
Debates on Internet fora can only take you so far; and ultimately people (in the heat of debate especially) will say something wrong. Thus, online debates should not be the benchmark for one's acceptance or rejection of Catholicism.
Amen to all that FourtySeven says!
I am a convert myself, from the Episcopalians, but my conversion was a long time in the making. A good classical education put me on the road, along with studying Medieval and Renaissance history (as Cardinal Newman said, "To be deep in history is to cease to be Protestant). And of course if you hear and sing the music of folks like Palestrina, di Lasso, Tallis and Byrd (the last two were Catholic but were left strictly alone by the authorities), that's a conversion experience in itself.
The important thing is to find out for yourself. Read and study. Plenty of folks here will be happy to give you suggestions. Here's mine:
It's old-fashioned and uncompromising, and it's intended particularly for Anglicans (the author was head of the Church Missionary Society for years). But if you want answers, it's got answers.