If one was to somehow detect that the earliest life on Earth has non-natural origins, it doesn't immediately inform us as to that source. For starters, we don't know if it's supernatural in origin. For all we know, Earth could have been seeded by intelligent, albeit natural beings from another world. We'd still have a long way to go to determine supernatural elements (and good luck proving the existence of the supernatural; philosophers have been trying for millenia).
On top of that, even if you manged to narrow it down to supernatural origins, that's still no guarantee that it would even tie to any theistic belief on Earth. In fact, I'm not even sure how one could explicity tie just the origin of life to any individual form of theism of the thousands that have existed throughout the ages.
Sure, they went out and spread the message by any means necessarily, including fighting wars over it. Not sure what your point is, though. If you spend some time looking at the history of religious beliefs throughout the ages, they are cultural in nature. And like everything in culture, they evolve over time. Christianity is one of thousands of beliefs that exist or have existed. And it was neither the first belief nor the only belief. Yes, it happens to be dominant in this day and age, but it's still only one of many.
That's why I said it would be a remarkable coincidence if it turned out life had supernatural origins and those origins just happen to be the dominant Western theistic belief of the current age.
Huh? I think you completely missed my point.
When I spoke of scientific publications regarding evolution not mentioning creationism or ID, I did so because scientists publishing works on evolution don't feel the need to explicitly address creationism or ID. Scientific publications tend to focus on, y'know, science. IOW, hypothesis, materials, methods, etc. They generally aren't diving into political debates unless it's a paper explicitly geared towards that particular discussion.
You won't find a paper on say, the evolution of Drosophila melanogaster or an analysis of a Tiktaalik fossil specimen that ends with "oh btw, we're right, therefore creationists are wrong, neener, neener, neener."
Yet that's the sort of thing that permeates creationist and ID material.