The origin of life is a crucial part (if not the most important question) of the Theist/Atheist debate.
Ridiculous! Why anything at all exists is a better question, to say the least, and one much harder to explain.
Yet I contend that most atheists are not aware that all life (the blue whales, the insects, the elephants, the octopuses, the trees in the redwood forests, the butterflies, the cactus, the humans, all the dinosaurs, and the multi-millions of other plant and animal species) that have ever existed are descended from the "same" one celled organism. (according to modern science)
Ridiculous, and an inaccurate, insulting claim about modern science.
First, modern science claims nothing of the sort. In fact, the understanding of how the eukaroytic cell (if you wish to remain in this discussion you MUST, absolutely MUST KNOW WHAT THAT IS WITHOUT LOOKING IT UP) occurred when one organism attacked another one, the two kinds having substantially different biochemistry, and the attack turned into a symbiosis.
The chloroplast and the mitochondrion have their own genetic material, which is concrete evidence of this, to modern science, so modern science refutes the preposterious claim you've made.
Second, modern science identifies many branches of life. There are bacteria, with one kind of cell wall. There are plants, with another, there are fungi, with yet another, and there are animals, with yet even another kind of cell wall. These different critters did not all arise from the same prototypical cell.
What's more, things like archeobacteria clearly arose from different conditions and have different structures, right down to the nucleus, so they are yet another completely separate branch of life, give or take a few exchanged genes that can be accounted for via ingestion of one organism by another.
So, you, in fact, have no idea whatsoever, in any way, shape, or form, what modern science says about evolution.
I would estimate that no more than 10 percent of all atheists know that modern science believes that all the millions of "plant and animal" species that have ever existed came from the "same" organism (and that first organism that we all came from was a one celled bacteria).
You're right, nobody who is informed knows that, because your statement of what modern science contends is completely inaccurate and mistaken.
Finally, evolution says nothing whatsoever about the origins of life, and by suggesting otherwise, you demonstrate that your words are wrong at each and every level.
I would suggest that if you don't want to be treated as ignorant, that you educate yourself before you make more mistakes.