Being a Catholic for the first 44 years of my life, "889" and its following paragraphs in "The Catechism of the Catholic Church" makes little sense to me, and what you write makes even less sense. As Catholics we were taught that in all matters of faith and morals, when speaking "ex cathedra" the Pope is infallible. And by implication--- the basic dogmas were infallible.  You state "the Pope is not infallible."
Then you state that several Catholic doctrines have never been declared infallible, but follow that saying they ARE infallible.
The fact of this matter is that those doctrines you [by your own "infallibility"] declare as infallible are false in light of the preserved Word of God in scripture.