Which social behavior occurs when barring a person from joining a club because of his ethnicity?

Repulsion and hate.

explanation:When barring a person from joining a club because of his ethnicity takes place, people tend to start housing hate and repulsion against those group of people and if certain acts occur more often, they start to generalize the behaviour amongst those ethnicities and form a certain attitude towards then which is mostly negative. They tend to feel discriminated for something they are born with which can create feeling of being left out, triggering negative reactions and generalizations.

answer; cultural trait;