The "theory of evolution" is just words... they once meant something like 'whether evolution'. Now, if they are to be used at all, they signify 'how evolution'.
   There is no serious doubt that a basic process summarized as 'evolution' is at work. Unpacking the concept to comprehend everything it implies is staggeringly complex.

I am reading Gould's "Wonderful Life" about the Burgess shale, in which he uses the study of those amazing fossils to discuss the entire range of issues relating to "science in general" and how mistakes are made... and corrected... and what it means to re-evaluate our data as we discover more examples.

Not only is 'life' evolving, but conceptual science itself is growing and evolving as we refine our ability to integrate our self-image with the discoveries about the changing world we are part of.
This means integrating our history & psychology & culture & religious concepts with the measurements of science.... as best we can.
   If humans have 'free will', whether given by a god or just as a natural byproduct of the brains neural workings, the result is the ability to **rationalize**..... and so far, no one has figgered out how to be sure when we are doing it. (Phenomenology... if you wanta spend a few years absorbing THAT can of worms... is one attempt)

(by the way... there are those who do not believe in free will. That debate gets very interesting)