To Christians who aren't creationists

[Polaris]

I believe Noah's Flood to be a localized event and actually happened because it is a common theme throughout human civilizations emanating from the Black Sea

Yes,floods are common events in mythology.However, the Noah myth seems to have been lifted from the Sumerian 'Epic of Gilgamesh'. It may or may not refer to a real event. More often than not,myths do not refer to real people or events. For that reason 'myth as history' has long been abandoned by reputable scholars.

As far as I'm aware,the fertile crescent civilisations grew inland on the Tigris and Euphrates, not the Black Sea.

the Flood, it was world-wide.

I have seen no credible evidence to support the argument of a world wide flood at any time.

"to those cultures that survived the Flood, it was world-wide"

Kind of like the belief that the Earth was flat, they were ignorant of the true size of the world.