quite a complex explanation is required in the complete absence of such replicators (as well as the complete absence of repeatable experiments that can give rise to them)
No I don't think that's necessary. It is enough to say that "we don't know,but we're still looking".
You
could consider complex explanations (like an omnipotent intelligent creator)... but as I said before, it's not a satisfying explanation. You're just substituting one origin problem with another.
On a side note, expecting repeatable abiogenesis experiments might be a little unrealistic, unless you have an available timeframe of millions of years.
We do know. The natural development from disorder to order for rainbows, galaxies, and other things mentioned earlier are well understood.
god has an explanation
chaos does not
Does chaos need an explanation?
Does god have sufficient explanation?
evidence within oneself is only half the equation
A necessary half of the equation. The other half on its own does not support the existence of God.
...kind of like the evidence within oneself in regard to the pursuit of science could well be a degree from a credible institution etc ...... further analysis reveals that there could be other issues outside of oneself (after all, there are plenty of crackpots with a PhD after their name)
No LG, that's not relevant at all. Having a PhD is just a first-level filter, and not even a necessary one. It doesn't form any part of the evidence for any scientific theory.
you suggested
If consciousness is materially reducible, then these fields should be able to verify it - correct?
given the throngs of IT specialists that congregate around the latest high tech computers amidst hordes of burgeoning populations of everything from fruit flies to humans, we can safely put the score at something like AI - O, natural consciousness 99999 gazillion
No, you vastly overestimate the current technology in comparison to a human brain. We are orders of magnitude short of approaching the required complexity.
Your implied expectation is something like expecting a hammer and chisel to be able to split an atom.