>>42349596They aren't though, again they're about as human as a teenage dragon.
New Canon: EqG Earth takes place in a time line where the Nephilim nearly bred human men out of existence but human men escaped to Equestria and found mares and happiness they've never known while the Nephilim and Wom*n staid on Earth as breeding stock for the Nephilim, eventually both Nephilim and Wom*n died out and all that's left was the spawn we see in EqG.