Miller and Urey set out to prove that complex organic molecules could emerge from simple chemicals in an environment like that of the early Earth. The experiment was a stunning success.
Amino acids that are ingredients of a protein were what was produced out of that experiment. And you need a ribosome to create a protein. The 20 amino acids that are found within proteins convey a vast array of chemical versatility. Tertiary Structure of a protein. The precise amino acid content, and the sequence of those amino acids, of a specific protein, is determined by the sequence of the bases in the gene that encodes that protein.
http://www.biology.arizona.edu/biochemistry/problem_sets/aa/aa.html
In laymans, it's like through a natural process, this muck creates a brink. And the cultists will claim that this will explain how we got the white house. In real life, you would require a number of things to create the white house; like workers, a blueprint, a sequence on where those brinks are supposed to go, in what order and at which time.
40 years after the experiment: The problem of the origin of life has turned out to be much more difficult than I, and most other people, envisioned. - Stanley Miller.
Unfortunately, Miller-type experiments have not progressed much further than their original proto-type, leaving us with a sour aftertaste from the primordial soup. - Massimo Pigliucci
It was certainly a stunning success at being a failure.
The problem is that none of the cells you are pointing to are said to be the product of abiogenesis.
The simplest cell are unicellular organisms, which are an information, processing and replicating system of astonishing complexity. Even Dawkins admits that the single cell is the simplest form of life in the God Delusion. I guess the next simpleton cell in your imagination would be a rock.
Quick question: All living things consist of proteins. The code for each protein is contained in the DNA/RNA system. However, proteins are required in order to manufacture DNA. So which came first? Proteins or DNA?