Hmmmm... Do you grasp the difference between what is science and what is not?
Natural science is a discipline and methodology with a history which goes back centuries.
To say, as science does, that there's no scientific evidence of a relatively recent world - covering flood, is not, in your word "propaganda", it's a fact -- science has found no such evidence.
Of course, you may well claim there is plenty of evidence, and point to the Grand Canyon & other geological features.
But science doesn't recognize any of those as worldwide flood evidence, among other reasons because dating shows them to be both ancient, and separated from each other by millions of years.
Plus, Sunkenciv ' question is not trivial: where could all that water have gone to?
None of this is "propaganda", it's simple fact -- there is no natural science evidence for, or explanation of, a recent worldwide flood.
Of course, no law requires you to believe anything science says, just so long as you don't claim your own beliefs to be "scientific".
ForGod'sSake: "A practicing atheist I presume, intent on surreptitiously spreading your “religion”."
Sorry, but now you're just blathering nonsense.
Natural science is intended to be the opposite of religion, in that, among other reasons, it begins by looking at the physical evidence and then searching for natural explanations.
Science does not necessarily accept as "evidence" words from ancient texts, no matter how revered they may be.
Of course, whenever physical evidence and ancient texts support each other, it's a matter of great interest, but that does not appear to be the case here.
Now, it's important to note that science does indeed report on MANY ancient worldwide disasters, including mass extinctions and even the entire globe covered in, no not water, but ice.
So, considering all those past natural disasters, God's promise after the Great Flood seems to me most significant.
Get back to me when you can offer a plausible explanation for hundreds of accounts; not myths or legends the scientific establishment would have you believe, but ACCOUNTS of deluges from around the world. While you're at it and in your spare time, explain the carcasses of millions of Mega fauna along with other detritus found in the arctic, as well as numerous other sites and regions around the world.
If you're new to this subject, take your time and avoid most of the "prestigious" journals and academic effluent. They've all gotten severe cases of whiplash turning away from the obvious. Shame on them.
Anyhow, this being Sunday, I have places to go, like church for example so I'll leave you to your studies until later. Enjoy.