Unchecked Aversion
From Categorism.com
Allowing an irrational aversion to affect ones understanding or treatment of a category of people. For any number of reasons, a person may develop an aversion against a concept, and thus against people associated with that concept. Such aversions might need to be kept in check, lest they bloom into outright bigotry... or even a phobia, in the clinical sense. (In Swedish: ohämmad aversion)
When applied to a category of human beings, this is a facet of categorism.
