All such instances are lesser than the incarnation. This particular supernatural approach to Genesis 6:1–4 derives from other passages that plainly have divine beings (angels) in embodied human form.
So not human, just divine beings in meat suits that could cum? Its not that the concept of angels taking on physicality and having children is more supernatural and therefore harder to believe. It is that it is too ridiculous. Besides your ridiculous idea of a one angel rebellion of the serpent and the open traitorous actions of the divine council at Babel, we are then to believe that spirits in Heaven became voyeurs, went against a celibacy rule placed on them when they were a one gendered species, became human enough to procreate, and fathered giants. All this in direct opposition to a plain thus saith the Lord that you dismiss out of hand because it proves you wrong.
