But it says they were there.
The question was posed to Job whom was obviously not there when God laid the foundations of the earth BUT Job was there among the sons of God singing about that as one of His wonderful acts in creation.
But, heck, you want to be right....have at it. Seth and or Cain's descendants married people...women...just like them and had giant Nephilim. Yeah, that works. People procreate and make giants.
Seth replaced godly Abel and his descendants carried on godly traditions which Seth and the other descendants of Adam and Eve did not.
Genesis 5:3 And Adam lived an hundred and thirty years, and begat a son in his own likeness, and after his image; and called his name Seth:
4 And the days of Adam after he had begotten Seth were eight hundred years: and he begat sons and daughters:
5 And all the days that Adam lived were nine hundred and thirty years: and he died.
6 And Seth lived an hundred and five years, and begat Enos:
So Seth came into being when Adam was 130 years old. That means Adam had other children besides Cain and Abel before Seth was to replace Abel. That is where Cain got his wife from one of his siblings or offsprings of siblings.
And Adam lived 800 more years begetting more sons and daughters before he died at 930 years old.
So picture the goldy lineage of Seth that had replaced Abel as his descendants marrying outside of that godly lineage with the daughters of men as not of the godly lineage of Seth.
Perhaps you should sit down and actually read
Enoch chapter 6. Or not.
You are not discerning this issue with Him at all.
Enoch chapter 6 does not testify to the result of the union.
Plus, they are admitting as "angels" that they are committing sin in taking women as wives for themselves and thereby overlooking the discernment that God would not marry them in being in collusion with their sins, now would He? He would not join them in "holy matrimony" for those women to be called wives to them in His words in Genesis 6th chapter any more than He would not join same sex couples or people with animals in "holy matrimony".
Enoch Chapter 7 reads like a fable. It is also lacking verses that was testifying to these giants being evil spirits.
The Benei Elohim, the Watchers, and the Origins of Evil
This link claims there are 3 versions to the story and yet tried to cover up the error of the omitted verses by saying that these giants were killed for how they were evil spirits but do note that the gap between verse 8 and 6 hardly testify to that end. I do not know why they did not share verse 7.
7:2 And they (=the human women) became pregnant and bore large giants, and their height [was] three thousand cubits. 7:3 These devoured all the toil of men, until men were unable to sustain them. 7:4 And the giants turned against them in order to devour men. 7:5 And they began to sin against birds, and against animals, and against reptiles and against fish, and they devoured one another’s flesh and drank the blood from it. 7:6 Then the earth complained about the lawless ones.
7:8 And now the giants who were born from spirits and flesh will be called evil spirits upon the earth, and on the earth will be their dwelling. 7:9 And evil spirits came out from their flesh because from above they were created; from the holy Watchers was their origin and first foundation. Evil spirits they will be on the earth, and spirits of the evil ones they will be called. 7:10 And the dwelling of the spirits of heaven is in heaven, but the dwelling of the spirits of earth, who were born on the earth, [is] on earth. 7:11 And the spirits of the giants . . . which do wrong and are corrupt, and attack and fight and break on the earth, and cause sorrow; and they eat no food and do not thirst, and are not observed. 7:12 And these spirits will rise against the sons of men and against the women because they came out [from them].
Anyway, that was the version of the Book of Enoch that I had read which testified to those giants having been born as evil spirits. It is highly likely that they had omitted those other verses to avoid seeing the Book of Enoch as an obvious Jewish fable.
Titus 1:13 This witness is true. Wherefore rebuke them sharply, that they may be sound in the faith; 14 Not giving heed to Jewish fables, and commandments of men, that turn from the truth. 15 Unto the pure all things are pure: but unto them that are defiled and unbelieving is nothing pure; but even their mind and conscience is defiled. 16 They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate.
John 3:6
That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.
Plus, that lie in Enoch chapter 18
14. The angel said: 'This place is the end of heaven and earth: this has become a prison for the stars and the host of heaven. 15. And the stars which roll over the fire are they which have transgressed the commandment of the Lord in the beginning of their rising, because they did not come forth at their appointed times. 16. And He was wroth with them, and bound them till the time when their guilt should be consummated (even) ⌈for ten thousand years⌉.'
Enoch is supposedly seeing this punishment of creation in that third Heaven which runs contrary to His words in Isaiah.
Isaiah 55:11 So shall my word be that goeth forth out of my mouth: it shall not return unto me void, but it shall accomplish that which I please, and it shall prosper in the thing whereto I sent it.
if you believe that part of the Book of Enoch, you might as well cast off all assurance of salvation because it testifies His word will not always come forth.
Then there is this truth that Jesus had shared for why it is a lie that Enoch had even ascended to God's throne, the third heaven
John 3:13
And no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven.
The apostle John was able to be taken to the Third Heaven after Jesus had ascended for how Paradise is now located in that Third heaven as testified indirectly by Paul in
2 Corinthians 5:1-5 whereas before it was located beneath the earth and across that great gulf from hell
Luke 16:19-31 KJV with
1 Samuel 28th Chapter for when King Saul sinned against the Lord by consulting with a medium to bring up the spirit of the prophet Samuel.
So how can Enoch see all that in God's throne, that Third Heaven?
Why would we care to see the punishment of His rebellious creation in Heaven when the Marriage Supper commence?
The Book of Enoch is a fraud and whatever fragmented remnant of the tattered scrolls that they have found among the Dead Sea Scrolls are Jewish fables.
As if Noah was carrying the Book of Enoch around for future generations. Not.