@DNA Thumbs drive,
Your analogy is faulty. Darwins theory was about HERITABILITY OF TRAITS that VARY INCREMENTALLY through TIME , and that was all about ability of the life forms to successfully adapt through evolution.
His theory was about many things we see today but his idea and work still is considered one of (or maybe THE) best ideas of the millennium.
Understanding genetics and its chemical mechanisms has not invalidated anything of Darwin's discovery. In fact, the only blunder he made in his "Origins..."was to posit that the heritable traits responsible for evolution were actually "diluted" by successive generations. (That was more a correction that was made by understanding the persistance of individual genes revealed from Mendelian genetics and not from genomics)
DNA is merely the "bookkeeping mechanism" of evolution. We see microevolutional changes occur in species for generations with
measurable morphological changes , all WITHOUT any DNA modifications.
PS, if your passion is about the creation of life, you've been in error to consider thi biochemistry as prt of evolution theory (Theres actually NO PLACE FOR IT).