While I do adhere to the belief that giants once inhabited the earth, I don't see how Giant aliens makes any sense. Unless they are from a nearby planet, how could an especially tall species not lose bone density traveling through space? I mean, yes, they could be suited to such a task, but with no eyes, nose or mouth? Were they even actual living beings? Or is this entire story just bull shit?
If and when EBE's visited the earth, there is no way none of them did NOT die here and weren't perhaps ceremonial ushered into the afterlife by the people who came to worship them or live among them. But no legit scholar has ever legitimized such a possibility. So, what to make of odd mummy's of possible extraterrestrial origin? Fact or fiction?