Your opening point is a crucial one indeed.....................
certain books were rejected by the RCC due to biases that had developed in the RCC by that time.
That's one way of looking at it.
Here is mine. God lives in the Catholic Church. Jesus breathed his Holy Spirit into the Apostles, and sent the Holy Spirit to dwell in the Church that he founded through the Apostles. So, when the Catholic Church - which is the Church that Jesus founded through the Apostles - speaks authoritatively on dogmatic matters (such as the Canon), that is God speaking directly. The Catholic Church IS God when it speaks on dogma.
The Bible CAN mean lots of things, but the Bible is not God. God is God, and God lives in the Catholic Church, so when the Catholic Church says dogmatically "The Bible MEANS this", that is God speaking directly, as God, giving the complete answer, and striking down all opposed opinions.
The "biases" that exist in the Catholic Church on matters of dogma are God's own biases, because the dogmas of the Catholic Church are all directly revealed by God. When the Church speaks dogmatically, that IS God speaking. It is more authoritative than any read of the Bible, because God MEANT something when he inspired those authors. He COULD have meant many things, but where it's important to him, he opens his mouth and TELLS YOU what he meant. The mouth of God is the teaching authority of the Catholic Church.
THAT is why the Catholic Church, alone, is infallible on all matters of dogma. Because it is not the Church speaking in such cases, it God speaking directly and plainly.
Obviously this is the diametric opposite of what you believe on the matter. In fact, to you, this is IDOLATRY. The Catholic Church IS GOD. The Holy Spirit lives IN the Church, and when the Church speaks dogmatically THAT IS GOD SPEAKING OUT LOUD ON EARTH TODAY. Nothing can be held up by mere men AGAINST God. Not the Bible. Not Tradition. Nothing. The Catholic Church is God speaking, when the Church speaks dogmatically - the Catholic Church, being God in such cases - can never err, and all arguments opposed to its dogmas are direct attacks on God.
That's obviously the very strongest assertion of the authority of God, and what the Church IS, that you'll ever see.
It's obviously idolatry, to you.
It's obviously so, to me.
Given these two polar opposite positions, obviously anything about Church politics is irrelevant to me. God sees all the politics, but he's still God, and when he speaks, through flawed men (such as the authors of Scripture, and Popes and Cardinals and Bishops), he nevertheless makes sure that they wrote, and that they speak, precisely what it is his will to say.
So, IF the early Church had biases against Enoch, those biases were put in their heads by God - they were holy resistance to falsehood. When the Church spoke out the canon, that was God telling the world directly - direct revelation from God - of what GOD considers Scripture. One can search the Scripture to understand, but what Scripture IS was revealed directly by God, because the Catholic Church IS God, when it speaks on dogma. Dogma is revealed like Scripture - God speaks THROUGH men whom he has selected as his vessels. In this way, God inspired the Scripture, and God inspired all Catholic dogma. Which is why neither can err.
One can err in his interpretation of Scripture and dogma, which is why, from time to time, God reveals MORE dogma, through the Church, to clarify what people are not getting.
Once again, obviously you can't agree with any of it.
Still, with the very purist position put forward, it IS possible to discuss things like Enoch.
The book of Enoch, and all of the books rejected from the Catholic canon, are not inspired by God. So they cannot be relied on for anything that contradicts that which WAS inspired by God.
What is it about Enoch, then, that is interesting? After all, Jesus, Peter and Jude all quoted it. Jesus quoted it to refer to the Son of Man. Peter and Jude quoted it with regards to angels leaving their stations. We know those things are so. Jesus was son of man and son of God, both - the ultimate Nephil, I suppose, but not evil because God chose to father him. The angels did indeed leave their stations - the ones that did are demons and devils, and they torment people. Other angels guard us.
900 foot high nephilim in the age of Jonah? No. That's an exaggeration. Dinosaur-sized beasts that were the products of angelic unions with living creatures? That may be where the dinosaurs came from in the first place, and where the dragons came from after the Flood. Maybe. Doesn't matter theologically either way, but it's interesting to speculate about.