For the OP: If you feel you have been discriminated against in a college setting, you should make your complaint to the school's Title IX investigator. Since the OP said she made a complaint, I assume it was with the school's Title IX office. They will investigate and respond.
If the OP would like to engage in a serious discussion of her rights and potential responses - talk to a civil rights attorney or start with either the local ACLU or NAACP.
TD
PS: Joking aside: the times have changed - whether or not there is a racial component, throwing a banana peel at someone is incredibly disrespectful, is most certainly a criminal act, and has no place in a setting of higher education.