Dangerously Close (1986)

Rebel without a cause or a clue at an elite but uptight college discovers some of his classmates have formed an even more elite clique more or less hellbent on ridding the school and quite possibly American society of what they deem to be its undesirables because of ethnicity politics etc Our hero recruits a teacher and some other less desirable classmates to undermine the elitists and naturally things get quite violent