I keep hearing , and of course the bible says the Nephilim were a hybrid of humans and sons of god. I read that Satan and the demons are the Nephilim, can you please clarify?
All life in this Universe descends from the Gods in a certain way. They are a higher principle of Existence that is required for life to even manifest.
Aside from that, yes, our physical creation as humans was affected by
avataric manifestations of the Gods that came here from other worlds through what we could call spiritual genetic engineering. (The Gods are not
just aliens, but there were avatars that embodied them among other planets, just as there were avatars native to Earth)
However, the stories of the Nephilim are a distortion of this and inaccurate.
Satan and His Demons (Zeus and the Gods) can indeed refer to both the Gods in their higher and true form, in layers of existence far above ours, as well as their physical embodiments on other planets. The latter have come here and sired the races of humanity.
The nitty gritty details are more blurry, as knowing about this historical gossip doesn't help us advance spiritually in the here and now. You might find out more from the Gods as you advance, but this shouldn't be a main goal.
Are there giants on the earth now IE: HILLARY CLINTON MADE REFERENCE TO AWAKENING THE NEPHILIM? Are there lands beyond the ice wall ,and what about Antarctica?
Hillary may or may not have said a bunch of things. I don't buy any of it.
Many conspiracy theories are distortions of the truth planted by nefarious sources to distract the truth seeking masses.
I don't think there are giants on Earth, at least not physically. Many species that conspiracists talk about, like mermaids, goat-men and Fae, do indeed exist as spiritual entities on Earth, just not physically.
We don't believe in an ice wall, we believe the Earth is round, just as the Greeks have figured out thousands of years ago using only shadows.
Most people won't take these questions seriously, don't take it personally. Best of luck.