You do not appear to understand what is meant by scientific theory. As used in science, a theory is an explanation or model based on observation, experimentation, and reasoning, especially one that has been tested and confirmed as a general principle helping to explain and predict natural phenomena.
Any scientific theory must be based on a careful and rational examination of the facts. A clear distinction needs to be made between facts (things which can be observed and/or measured) and theories (explanations which correlate and interpret the facts.
this definition still does not change the fact that the theory of evolution has not been proven. There is not a single person anywhere on Earth who can conclusively say evolution is a fact. For there is as much evidence against it as there is for it. we should change the title for the theroy of evolution to the lie of evolution.
I do understand what a theory is by the way. I hold a degree in electronics. The field of electronics is based almost entirely on theories.