As to the OP:
Richard Carrier in his magnum opus On The Historicity of Jesus, Why We Might Have Reason to Doubt, Sheffield Phoenix Press, 2014, demonstrates with utterly convincing evidence that the era of the origin of the Books of Enoch was the prime time obssession of the ancient Jewish for story telling. We have literally hundreds if not thousands of made up books, some of which actually made it into the Bible (Daniel) which no group of Jews nor Christians believe is the Word of God. This era was the best time to just, to quote Carrier "make stuff up." Whether it contradicts the Bible or not is irrelevant as to it being the Word of God. It is some Apocalyptic Jews point of view about the political times they were living in according to several Bible scholars, James C. Vanderkam, R. H. Charles, James H. Charlesworth, Andrei Orlov, Gabriele Boccaccini, Joseph A. Fitzmyer, Robert M. Price, J. T. Milik, and George W. E. Nickelsburg, to name the most prominant players in this area. Even the Mormon scholar Hugh Nibley got into the act, and came up with all sorts of parallels to demonstrate without question (in his mind) that it doesn't contradict the Mormon scripture they call The Pearl of Great Price, and the books of Enoch prove Joseph Smith was a true prophet!
This is an area which is simply rife with speculation and innuendo, phony scholarship, and yet real and serious attempts as well, to attempt to figure out just what the Sam Hill is going on. There is simply no final conclusions we can point to as of yet, other than the ancient crackpots can still continue to influence some modern day crankpots with their own weird and wild fantasies. I'm not calling you a crankpot, I am saying your ideas simply don't hold up all that well. There is vastly more made up stories and phony history in the history of Judaism than there is scripture by a rather large margin actually! I used to study all this kind of stuff all the time. If it's one accusation that holds up rather well, it is that the ancient Jews were some of the best story tellers and inventors of stories of all time, and we have overwhelming evidence showing this. One must be exceedingly careful in that regard. What you have accepted as the Word of God simply isn't so, by a vast margin of many religions and scholars of religion and history. I, for one, cannot follow in your footsteps in agreement either, sorry.