The answer is that the Miller experiment had a number of flaws, but it was not the last word into research on the possibility of abiogenesis. Why not read some scientific papers rather than ID websites? Perhaps Miller has actually kept up to date with current research and didn't see any point defending decades old research which he himself has superceded.
If your argument simply boils down to the probability or unlikelihood of abiogenesis perhaps you would like to give us some indication how you arrived at that level of probability.
TTFN,
WK
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