For someone who claims to have been a public school science teacher, you show absolutely no understanding of what a scientific theory is. In science, a theory is the framework that provides the logical framework for the observed data. It both explains existing data and provides a framework in which to devise testable hypotheses. Theories are always being refined over time as new evidence is revealed by hypothesis testing--that is how science works. The fact that a theory is constantly being updated does not mean it is wrong.
I stand by my statement that not only are theories fine-tuned as you say - they are also proven totally wrong.
I do understand the whole theory thing, but didn’t want to spend the time & trouble detailing all of it....