Yes, I understand this fully.
You’ve clearly already made your decision. I find this unfortunate, because it seems like your understanding of Catholic doctrine is incomplete. I am always in favor of people using all available information before making up their minds. So, again, I find this simply unfortunate.
Your post goes in many directions, none of which seem to relate to your OP, and I would like to chat with you in depth about each one, and I suggest you start a thread on each of them. I think you will get better responses, but I can respond in general I hope without derailing your thread. I don’t know why you have elected not to stay on your topic, I found it to be a good one, but so be it.
You stated that it seems to be that the church does not admit that she does not know anything. This is false. Church documents talk very often about what is unknown. The church is very explicit in saying what they don’t know. We don’t know the state of your soul, we don’t know the mind of God, we don’t know who is in hell, we don’t know how the mystery of the incarnation works, we don’t know exactly what heaven will be like, we don’t know how exactly the universe was created (only that it was created ex nihilo and entirely by God), we don’t know when the end will come. My word, I could go on and on. You call this wishy-washy. I call it being honest.

The church is ALWAYS stressing exactly how MUCH she does not know. I’m surprised that you seem to think the church takes a position that they seem to know so much, when, upon reading church documents, I think it’s quite obvious that the church very much limits herself on exactly what she does, and what she can ever know. You say you doubt such an admission would come forth any time soon, but such an admission already has come from the church, and it has been that way since the beginning. I provided for you as an example the items listed above (which is really all just from top of mind, there’s much more) of the many, many things on which the church says ‘We haven’t a clue’.
And the church does know SOMETHING. They are also very clear on that. Which takes me to your second point. You state that the cathechism is supposed to be the final word. Again, I’m afraid your understanding is incomplete. Though the Cathechism reflects authentic catholic teaching, it does not include ALL Catholic teaching, nor does it include proofs, nor the stories of the saints, nor ffull Church history, nor a recipe for fruitcake. Do you wonder why the phone book doesn’t have Shakespeare in it? My point is, you are trying to glean information from a source which never claimed to have that information. That must be very frustrating for you.
The Catholic Church is TWO THOUSAND YEARS OLD and over that time many Catholic theologians and saints have provided their proofs for God. Certainly you don’t expect the Catholic Church to bind that, and all of their other proofs for everything else, into one volume? My goodness, I don’t think a TRUCK could lift that book! You could probably trust that, by reading the proofs provided by the doctors of the church, and Thomas Aquinas specifically, you will have an understanding of the reasoning by which the church comes to understand the existence of God. In other words, the information is there. You can probably get at least Aquinas at your local library. Socrates, Plato and Aristotle all argued for the existence of a primary god (though not necessariliy with all of the same qualities of the Abrahamic god) and they did it all through reason alone. Should the cathechism list all of their works, too? Many philosophers have argued the existence of god (or gods) from reason alone, many non-christian. The church trusts that you can go do the legwork yourself and read the proofs without them feeding it to you.

In addition, the church does not present these proofs as their own nor do they present them as being infallable, so why should they include them in the cathechism? I think it’s safe to conclude that, since people HAVE used reason to conclude that God exists, that it’s not such a stretch to state that God’s existence can be known through rational means only, since it’s already happened time and time again.
cont