At least the flood on earth was documented by living humans at the the time of the flood. I've not read any eye witness accounts for a flood on mars. If you know of any please point them out.<quoted text>No living human has ever seen a flood as described in the Bible but that doesn't stop many of them asserting that it really happened.
Neither does it stop them pointing to a geological feature like the Grand Canyon and claiming it is evidence of the same flood.
I guess you don't do that.
Good for you.
I would love to read it.