pithecophobia
The denial of or a discomfort with the scientific notion that humans evolved from apes.
uncountable
Nevertheless I beg your indulgence for describing a new kind of phobia which is now widely prevalent among the American public. It may be named pithecophobia, or the dread of apes—especially the dread of apes as relatives or ancestors. During the past few years this phobia has become almost pandemic; perhaps we have not yet passed the peak of its incidence, especially in rural communities.
Where it comes from
From pitheco- + phobia. Coined by American zoologist William King Gregory (1876–1970) in an 1927 article in Science (see quotation).
Adapted from the Wiktionary entry pithecophobia (CC BY-SA 4.0).