This says much more about abiogenesis than evolution.
You are making the erroneous assumption that the first self replicator was a DNA string as complex as we find today. This is unwarranted as DNA is not necessary, RNA makes a fine replicator and the initial molecule of RNA did not need to be of modern length.
It is much more likely for a 10 nucleotide ditty to be whistled than is a lengthy 670 billion nucleotide concerto. All this ditty (phrase) needs do is replicate with some dissonance (a few sour horns or wood winds) and some recapitulation thrown in to eventually result in a rather lengthy symphony.
I think you showed up too late to expect a rebuttal, unfortunately - AnnoyedOne got annoyed and announced 'intention to abandon thread' a while ago. (It was a fun time, though, sorry you missed it.)