Most compelling evidence that evolution is not a theory may be the idea of scientific theory itself. By that I mean the relatively recent addition of the line about consensus determining what is or is not theory. Consensus is just another name for a fallacious argument; the bandwagon argument.
Theory as defined pre post Christian era was a scientific idea that could be proved by experimentation and that experimentation could be replicated. It was widely acknowledged that the Big Bang nor evolution qualified as theories. Note that Darwin himself realized evolution or even his origin of the species did not work out when put to the test. This is echoed in this review: The Gospel Coalition blog reviews a book about the Cambrian or Silurian period which blows a hole in evolution.