So "we" don't know what initiated Abiogenesis!?
So what?
It is something that can be determined through sufficiently careful observation, testing, analysis and theoretical models. It does not require a mystical explanation to understand.
No one has claimed that we are in possession of all the facts of nature to be known, only that all the facts of nature can be known.
Also as Aegist said:
I do personally think that the whole process is a sort of evolution. But it isn't Darwinian Biological Evolution until AFTER biogenesis.
It is valid to consider abiogeneisis a part of a larger model of evolution that deals with a more universal set of rules (cosmological evolution?) but it is not precisely the same as the set of rules that govern the more specific set of laws under natural selection after abiogeneisis.
Think of the rules of Natural Selection as a more defined and clearly understood set of rules that are a subset of a larger more encompassing set of rules that we still lack sufficient data to fully comprehend so that we can model them in all their detail. However that data is out there and we can gather the facts, ultimately understand them and even likely someday manipulate them to our advantage as a species.