Myth is how we perceive the writings that do not match the scientific facts we understand.
You think they were going to actually write 7.5 billion years ago...
their concept of "water" is not H20. Their concept of a single horned animal is not a horse with a horn in the middle of it's head.
The ark was not "one" ship and the flood was not meant to ignore the notion of a meteor hitting the indian ocean 15,000 years ago causing massive tidal waves.
YOU are trying to change the meaning of the Bible MORON!
YOU just said Genesis was a MYTH.