Strong race-aggression associations and rapid racial categorization are well documented.

Evidence

With regards to stereotypes, a vast amount of literature has shown that people tend to hold strong associations between race and aggression (Devine & Elliot, 1995) and are quick to categorize others based on race (Brewer, 1988). — Joseph Avery, Jim Sidanius, Joel Cooper, Gregory Davis, Amanda N., Bias in the Law, 273