This is my own personal one, and rather than explain it I am just going to ask the question that logically leads to my conclusion:

Then obviously we can't have come from the sea because rivers come from many springs in many mountains leaking water that fell on them out of the giant water permeable rocks under the ground. Life began in a creek, if anything, or a lake, not a sea, let alone an ocean.

I could go into the whys and wherefores about the chemistry of this rock and where the atmosphere came from as well, because that's where half the water originated, but most of it started in the rocks.

Why do people seriously believe that we crawled out of the sea when there was water here before the sea?

Childish assumption that others are like the self, that now is eternity, and the world they know is the limits of reality.