If that's all that's standing in our way, then I'll accept your semantics for the sake of argument.
THANK YOU.
So my basic assumption is that the origin of life on earth is a mystery. Or still a mystery if that suits you.
OKAY.
The scientific "explanations" you point to are speculations.
THEY ARE EXPLANATIONS. Only their accuracy is doubted. A bunch of years ago I constructed an explanation for some of the first steps of "abiogenesis". It is located
in this thread in at another discussion site, and it is long and involved and complicated, and posted across a whole bunch of different messages in that thread (starting with #33). If you read the link about "
Moore's Law and the Origin of Life", then you might notice some similarities in it, to what I wrote about (except I was first, and simply made a guess about the rate of complexity-doubling).
And some of the speculations I've read seem more like science fiction than science.
SCIENCE FICTION HAS ITS SHARE OF FICTITIOUS SCIENCE. It also often has accurate science. Discovering which is which can be quite educational. Meanwhile, keep in mind that subatomic-particle physicists have a simple guideline that is applicable to more than particle physics: "Anything not forbidden is mandatory." That means any possible thing that can exist or can happen is expect-able to exist or happen somewhere, sometime. (Observing Macroscopic Evolution In Action could take a lot of looking for a long time in a lot of places.) If you encounter the apparently science-fictional, look to see if some aspect of it is forbidden. If nothing about it is forbidden, then the overall thing should be
possible --
however improbable it might truly be.
But let's not get distracted by science here.
IN OTHER WORDS: "Let's ignore science so that we can pretend the origin of life is a total and complete mystery to science." Uh-huh. Do you see why getting on-board with you is somewhat problematic?
This is my amended argument:
The origin of life is still a mystery.
NOT OBJECTING, SO FAR.
Moral agents must make informed choices.
NOW YOU ARE INTRODUCING THE SUBJECTIVE, instead of the Objective. Since morals are provably Arbitrary and Subjective, you are stating an opinion, not a fact, regarding whatever is a "moral agent". How many barbarian hordes thought it was completely moral for them to kill anyone who got in their way?
To choose against life is therefore an uninformed choice.
BAD LOGIC. You have not explained how this connects to not knowing the origin of life. I might
assume you are subtly claiming that just because we don't know the origin of life, its existence somehow includes a right to keep existing. Thus, to choose against it is to choose in ignorance of that "right"-- which in actuality might not exist! On what basis should that specific ignorance require assuming life has a right to exist? (Also keep in mind Known Facts, regarding how it is impossible to survive without killing other life-forms, including automatic killings performed by the immune system.)
Note the assumption is a positive claim that has not been supported with any evidence! You cannot have a valid argument when you leave out crucial connections!
But the law cannot take that choice away without infringing on the morality of the choice.
YET LAWS DO THAT ALL THE TIME. One could argue that choosing to rob a bank is a moral choice. And, the bank robber doesn't know the origin of every dollar in the bank vault --even the bank might not know, if the place is getting used as part of a "money laundering" scheme. Nevertheless, a Law exists forbidding bank robbery.
FINALLY, I NOTICE YOU DIDN'T RESPOND TO SOMETHING I POSTED A WHILE BACK, regarding how abortion saves more lives than it kills. In more detail, many life-forms each need its environment to contain
about 10 times its own mass in other food-life-forms. The "eater" life-form doesn't eat all the food-life at once; eating happens slowly enough that the food-life can replenish itself, allowing the eater to feed for a lifetime. ANYWAY, it is often said that a pregnant woman "eats for two". This means that she is directly associated with the deaths of a great many life-forms, just so that she and her offspring can live/grow. Obviously, if the offspring is aborted, lots of that other life (a lifetime's supply of it!) can be saved!