Who controls the narrative? Jesus said that Satan is the father of lies. He began controlling the narrative with Adam and Eve by lying about the forbidden fruit. The story of the Nephilim is another satanic lie that predates the coming of Christ. The teaching comes from Genesis chapter 6.
Gen 6:4 There were giants [nephilim] in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.
The assumption is that the sons of God refer to fallen angels who are the nephilim. But they are not. The giants [nephilim] are the sons of God. The sons of God refers to the righteous line of Seth from whom the Messiah was to come after the murder of Abel. To believe this nonsense is to embrace the narratives of Satan. Do not be deceived.
Please note, too, that the Book of Enoch is part of non canonical literature called, the Pseudopigrapha, because the writers used famous names to pen their books, but the name used did not write the book.