Ancient Mythological God's Actually Nephilim From the Bible?!

Genesis 6:1-4
Tonight the gods of the ancient mythology and their connection to the Bible.
Is there a connection to the Genesis 6 narrative. The universal story from the Bible agrees with every major culture in the ancient world. The Nephilim were the real and became legends and their story survived every culture. The Greeks called them titans. The romans called them demi-gods. We will talk about the American Indians and the appearance of the Nephilim. The origin of all these accounts go back to its first source and I believe it is the Bible