So you're saying that Jan Oort, back in the 1940s and 50s, (at least a year before the Kuiper Belt hypothesis came into being) invented his own hypothesis to account for the lack of the objects that existed in a yet hypothesized hypothesis?
Seems like Jan Oort needs to be recognized for his Psychic powers, not his contributions to Astronomical Physics...
So, after the Flood, which would have killed everyone on the planet according the scripture, there was an Ice Age, during which there is tons of evidence for the existence of humans and animals going about their daily lives like it never even phased them... Even if you tweak this idea some, you're still only arguing for a smaller, localized flood, which is not the deluge of Genesis, either literally or of theologically.
The Marianas trench was formed by tectonic subduction, which is another area of science that you'll have to reject in order to maintain your current belief system. People who study the Universe look at as much of the Universe as they can. People who study geology look at as much of geology as they can. People who study biology look as much of biology as they can. They aren't settling on a few pebbles. They are looking at huge swaths of information before even suggesting these things. If you want to maintain a localized flood, known only to the Mesopotamian and Semitic people's, there's plenty of evidence for that. If you want to suggest that the entire Earth was covered in water, or that a mud house was swept away by a six mile high wall of water, there is no evidence for that.
By Ice Age theory I'm assuming you mean the idea that the people who wrote of the flood saw evidence of the Ice Age and just made some mythological guesses about what caused them, right?
I mean, Hell, I have evidence of glaciation in my own backyard...
North Georgia Mountains
Now I could make up all kinds of stories about how the rock shapes and formations happened at Rocktown, or I could use observation and testing to help me discover the actual reason for their existence. If you prefer the made up stuff, that's totally cool.
What do we fear?.... This is a little projectionists on your part, isn't it? Of the two of us, for example, which one has a delicately crafted worldview which requires quite a lot of precarious assumptions that we are very emotionally attached to?
The data supports what the data supports - If there was data for a global flood, do you know what science would teach? It would teach that there was a global flood. But since the data supports only localized regional floods, science teaches localized regional floods.
Care to turn that question back around on yourself so you can finally make some progress out of willful ignorance?