FWIW, UFO studies report alien autopsies revealing the EBE bodies do not have respiratory systems for breathing.
All created beings and all creation fall sunder the dominion and power of our Lord and Savior Christ Jesus. All judgment of the Creation has been reserved to Him by the Father.
So in some respects, it really doesn’t matter.
They might also be counterfeit forms of life in an awkward attempt to emulate the Creator by a counterfeiter. That might go far to explain certain preoccupations with stealth, extracting DNA, and cattle mutilation.
They might indeed be fallen angels or minions thereof or at least their modes of transportation in the physical domain.
Quite reasonable points, imho.
Thx.