Is Eve in Hell right now?

[Brakeman]

Who are Lucifer's descendants supposed to be, though? And why, if the serpent was really Lucifer, did the writers of Genesis deliberately confuse the account by not saying that he was an angel?

Lucifer has no descendants, angels can not procreate, I do not know the verse in the NT that tells us this, but I will find it if you wish.
Angels are not mentioned in scripture until the Abraham story, this is a couple thousand years after the temptation of Eve by the serpent. The book of Genesis was written by Moses as revealed to Him from God and possibly through stories preserved through time.

GC

Genesis 6:1-22 ESV

When man began to multiply on the face of the land and daughters were born to them, the sons of God saw that the daughters of man were attractive. And they took as their wives any they chose. Then the Lord said, “My Spirit shall not abide in man forever, for he is flesh: his days shall be 120 years.” The Nephilim were on the earth in those days, and also afterward, when the sons of God came in to the daughters of man and they bore children to them. These were the mighty men who were of old, the men of renown. The Lord saw that the wickedness of man was great in the earth, and that every intention of the thoughts of his heart was only evil continually.

Many, if not most of the christians of old believed that the angels did have sex with humans and procreate successfully by their interpretations of these Genesis verses. Why wouldn't they have gotten it right?