Perused. I liked the Star Trek part.
Nothing is shown from the Bible to prove either way. So far, without Bible evidence, this is one of those private interpretations that can be argued, but not preached as truth of Scripture.
Gen 6:2That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose.
We see that it had nothing to do with faith and character of the women, and so if they were the righteous, then they forsook the Lord and His righteousness for hot babes.
Also, they took the women at will, seemingly without any resistance nor choice from the women nor their fathers and brothers. This implies a power than natural man cannot resist nor defend against. Angels.
Gen 6:3And the LORD said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years.
We see a beginning of rebellion, griefs, and sorrows by turning from the Lord in greater numbers on earth.
Gen 6:4There were giants 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.
Now we have giants distinct from the offspring of renown, and being on earth
before the sons of God took to marrying women by their looks alone.
And so, at this point I would say the sons of God could easily have been the righteous on earth forsaking the Lord for the flesh, and producing mighty men of renown, like the mythological golden age heroes of old.
Gen 6:5And GOD saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually.
But their mightiness was in evil, not good. The Bible often uses the words mighty and great for both good and evil. In this case, it is only evil continually.
However, the giants are left unaccounted for. I could conclude at this point, that the giatns were from the angels that sinned, and the wicked men of renown were from sons of God forsaking the Lord for the flesh.
That could explain why there were later giants on earth after the flood, that could not have been by the blood of Noah. They are unaccounted for in generation on earth, but are physical giants. Which would post-prove the same for the preflood giants.
It would also possibly show the sin that the angels sinned, in producing offspring on earth by women.
I believe a strong key here is knowing from Scripture, that the giants were on the earth
before the sons of God married outlandishly hot daughters. Their generation is unaccounted for.
2Pe 2:4For if God spared not the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved unto judgment;
2Pe 2:5And spared not the old world, but saved Noah the eighth person, a preacher of righteousness, bringing in the flood upon the world of the ungodly;
We see a here that the angels sinned, were judged, and cast into hell at the same time of the world just before the flood. We also see Noah was the only son of God remaining faithful to the Lord and His righteousness, along with perhaps 2 of his sons.
And so, I'd say the angels first sinned with women to produce giants on earth, and then the sons of God sinned with stunning beauties more than glad to be taken by them. (The same as the children of Israel in the matter of Peor)
Perhaps they were the female offspring of angels and women, whose physical result is beauty rather than brawn. And perhaps they were purposely used to seduce the sons of God. Perhaps their offspring were famous for slaying the giants.
One thing is for sure, this is where the Scriptural record is corrupted by the devil into the mythologies of ancient heroes and demigods, with warring of gods, men, and giants.
In particular, the casting of the Titans into Tarturus and chained, is near exactly lifted from the truth, that the sinning angels were cast into hell (tartaro) and chained in darkness for judgment. Tartarus is the deepest dark prison in the earth, which answers to hell (gehenna) in the Bible.
Luk 12:5But I will forewarn you whom ye shall fear: Fear him, which after he hath killed hath power to cast into hell; yea, I say unto you, Fear him.