We .. that's us ... have ... at our disposal ... volumes of water [equal to the volume of Lake Superior] ... hope this clarifies ...
It clarifies that you are quite a fool, of you think that would cause an event leading to a global flood myth across the world's cultures.
Guess what other myths cultures share? Dragons. Wind gods. Fire gods who fly across the sky. But it's very easy for us to understand that what happened was a magical story that was made even more magical over time.
Now be a rational, funcitoning adult and apply this same, simple process to your overwrought and completely unsupported global flood myth ideas.