Exercise your First Amendment rights. Expose and denounce hate. Put ads in the newspapers so the media can achieve balance. Do not debate hate mongers on conflict-driven talk shows. Create a positive reputation for your community.
Unanswered hate is bad for business.
Hold annual events such as picnics or fairs to celebrate your community's diversity and harmony. Create a web site for these purposes. But the school environment can still influence students. Target youths who may be tempted by skinheads or other hate groups. Work against discrimination in housing, employment, and education.