For the Angel/man theory to work, angels and men must be close enough together biologically for it to work.
That's a good point, but theologians who say, "We don’t know how divine beings could produce offspring with humans, so it didn’t happen,” are committing a logical fallacy: lack of understanding is not proof of impossibility (argumentum ad ignorantiam).
Theologians who take the Genesis 6 account seriously from a supernatural perspective have proposed several explanations:
• Some believe the sons of God temporarily assumed physical, human-like bodies—just as angels do in Genesis 18–19—making procreation possible.• Others suggest fallen angels possessed human men, corrupting the human line without direct angelic reproduction.
• Another view sees the union as involving forbidden knowledge—occult or genetic corruption—as described in 1 Enoch.
• And some simply accept the event as literal but mysterious, holding that ancient texts report spiritual realities without needing to satisfy modern biological frameworks.
This is purely speculative of course, but some theologians and researchers have proposed that the “union” between divine beings and humans described in Genesis 6 may not have been purely sexual. Instead, it might have involved genetic manipulation, occult rituals, or a kind of spiritual or technological hybridization that fundamentally altered human nature or bloodlines.
Though speculative, this view helps reconcile several elements of the text: the non-human nature of the Watchers, the very real and physical result of their rebellion—the Nephilim—and the idea that forbidden knowledge itself was the corrupting force.
Modern parallels are often drawn, including alien abduction narratives involving genetic experimentation, transhumanist or occult movements seeking to transcend human limitations, and the recurring biblical theme of crossing divine boundaries—a pattern of rebellion seen from Eden to Babel.
“For the Angel/man theory to work, angels and men must be close enough together biologically for it to work.”
Here is my theory on that. I do not believe in evolution. Instead I believe we were created over time one stage at a time. As were all the other creatures. Each stage was allowed to prove it’s self out for a couple hundred thousand years to weed out the weak of each hybrid stage before introducing the next dose/batch of DNA. This was repeated in stages over the couple million years of the hominid existence until they eventually perfected Modern Man from the original ape.
Think about it, it would explain quite a bit about how the development of humans from apes took so long and why each new step was better and more advanced yet they had no change for quite a spell and then all of a sudden a new more advanced hybrid appeared almost out of no where. When did this hybrid appear and where did the previous hybrid go?