I'll clarify the Aquinas point.
Aquinas basically says this:
From nature and reason you can deduce things like: God is one, God is infinite, God is almighty, etc.
From nature and reason you can't deduce things like: God is three persons in one essence, God became incarnate in Palestine from a virgin, He was crucified and resurrected three days later, etc.
This has nothing to do with anything we're talking about. I find this especially odd and telling of what the error is
LOTR belongs entirely to the natural order. It is attractive to human nature, perhaps even to the law written by God on the heart. Its metaphors and allegories do not extend to the supernatural order, no matter how many people insist otherwise.
Aquinas is saying you couldn't prove the incarnation through Tolkien, that's it.
I'm not trying to mischaracterize your argument believe me but you seem to be making the point that since Tolkien is a human author writing a human book he can't make analogies, metaphors and allegories touching and giving a certain insight on supernatural topics? That's not what Aquinas says at all. Under that logic the Voyage of the Pax or any similar book would also be solely natural and not extend to the supernatural order.
Or for that matter he's also saying you couldn't prove the Trinity from the Meeting of Abraham and the Three Angels, but once you know about the Trinity you can see it symbolized. Medievals also did this to secular history and the natural world. They obviously knew you couldn't be a pagan and deduce the betrayal of the God incarnate or his Resurrection from Julius Caesar or the Phoenix, but once a pagan knew about these things from a priest he could very easily see it.
But anyway that's it I think you just misunderstood what that whole article of the Summa was about.
Also for the record I don't like you, you've insulted me, snarkily condemned me to hell, tried to psychoanalize me, and talked in an affected and condescending way. we wouldn't get along in real life most likely and I think you should think about the way you conduct yourself online.
But of course I return your last message's sentiment, idk it was sarcasm or in earnest, but at the end of the day this is just an internet forum we're both just random people talking about stuff. I pray that you have a holy and happy life and God blesses you and keeps you <3