It is a scientific fact, as are all accepted scientific theories, if you now claim it is just a theory then I'm afraid we're done. As I have found it is a waste of time to converse with anyone that ignorant of basic scientific terms and methodology, yet who is prepared to make sweeping denials in favour of archaic superstitious creation myths, that are unsupported by any evidence, have no explanatory powers whatsoever, and appeal to inexplicable and unfalsifiable magic.
That is errant nonsense, when Darwin published his seminal work the evidence was already overwhelming, and all the evidence from over 162 years of global scientific scrutiny since supports species evolution through natural selection, and from multiple field of science.
The entirety of medical research is predicated on the fact of shared ancestry and species evolution.
Overwhelming evidence of r evolution, and debunking of creationist lies and propaganda <
HERE>
Utter nonsense.