[NotQuiteCricket]

"Although many "creation" and "flood" myths are similar, don't the Hebrew ones predate them all?
Ditto with the virgin or godly inspired birth (see Leda and the swan in Greek mythology) "

No. No. and No.

[dinodino]

No, there are creation and flood epics older than the Hebrew, on which the Hebrew myths were based.

[dljordan]

No, the Sumerian and Babylonian myths predate the Hebrew.