While racism is defined as a belief that one race is ultimately superior over all others and thus racial discrimination is not inherently racist, sexism is defined as discrimination based on gender. Therefore the exclusivity of the a gender based clan is inherently sexist. And yes, so is Dads of Destiny, Boy Scouts of America, Girl Scouts of America, GOLF(Guys Only Ladies Forbidden), the LPGA, the WNBA, and all mens/womens collegiate teams.