SINCE YOU DARWINISTS "understand abiogenesis," why don't YOU explain the impossibility of hemoglobin synthesis.
Human hemoglobin consists of 528 amino acids arranged in a very precise sequence, which sequence is folded in such a complex manner that humans cannot make a single hemoglobin molecule in a laboratory. There are 20 different amino acids.
So the number of possible sequences is 20 to the 528th power or 10 to the 686th power.
Explain, with your profound scientific intellect, exactly how the impossible task of assembling the one correct sequence of human hemoglobin, out of 10^686 possible others, was accomplished, KNOWING FULL WELL that every step in the assembly demands, according to your "selection" tautology, that each intermediary have a useful function which selectively preserves that step to the exclusion of most if not all others.
Your "proof," as you are always demanding of others, will require, oh, about 10 to the 600 steps, and intermediaries, and 'selection" processes.
That is just for ONE polypeptide, understand.
It's abundantly obvious you cannot ever begin to take the first step in demonstrating YOUR pretense of "understanding abiogenesis."
But try anyway.
(Nobody ever has, and nobody ever will.)