Hence the reason God flooded the earth (noahs flood). Its real clear in Genesis, the nephilim were the fallen angels that "saw the woman as beautiful" and recreated with them making a race of human and fallen angel, called the geiber. All the stories of shit like the odyssey and talking about giants, etc are based on reality.
And yes the vatican and satan worshipping illuminati make sure noo one knows this stuff. Much more too that we dont know.