So, your refutation of "all mutations are deleterious" is they "can be both good and bad". If there is such a thing as a good one....has there ever been an observed new species? Your proof is e-coli becoming more resistant to antibiotics (best I've seen), just like humans becoming more resistant to influenza post 1914 or so, or Darwin's Finch's, or just like mid-western weeds/bugs becoming more resistant to herbicides/pesticides. Answer me this....are they not still e-coli? humans? Finch's? weeds/bugs? Just because a population, through what Darwin called "natural selection", survives does not prove evolution. Darwin couldn't have gotten away with his theory if it wasn't tainted with some natural laws.
Oh, I forgot, natural laws "evolved".