A word Men's Rights Activists call themselves because they feel that Feminists do not value issues of sexism which don't directly benefit men, like child custody issues, prison sentencing , etc.. This is such a ridiculous term because it's used with the heavy assumption that leveraging equality for women does nothing for men. Feminists want equal treatment and that means equal expectations in all affairs. Masculinist is simply a redundant term that neglects the idea that Feminism works for both genders.