The theory of evolution says that monkeys become cathedral-builders and mathematicians by an accruement of accidents. Since there's no evidence for that, and the concept is repugnant to reason in the first place, people are fully justified in rejecting it as idiotic.
Of course there is evidence (anatomical, genetic, paleological etc., etc.). Just because you’ve decided that the logical conclusion of the massed evidence is repugnant to your ‘reason’ (better to say ‘faith’ here but let’s go with your definition for the time being) doesn’t mean that the evidence isn’t there.