segregationist
Segregationist is a term used to describe a person who supports the policy or practice of segregation—the enforced separation of groups by race, ethnicity, religion, or other characteristics. The term is most commonly applied to advocates of racial segregation, especially in the history of the United States.
In U.S. history, segregationists argued that keeping racial groups apart was necessary for social order or cultural
Outside the United States, the term can describe supporters of other forms of segregation, such as by