The belief that gay men and lesbians are unable to provide a stable environment in which to raise children fuels manifestations of sexual prejudice that are still highly prevalent in Portugal and Mexico. The aim of this study was to assess attitudes toward same-gender parenting and gay and lesbian rights, as well as beliefs about the controllability of homosexuality among a sample of 531 university students. A further aim was to assess the predictors of attitudes toward same-gender parenting. Results revealed the existence of ambivalent attitudes toward same-gender parenting. The belief that homosexuality is a choice and thus controllable in particular explained over 50% of the total variance of attitudes toward same-gender parenting. Being a man, older, and highly religious predicted higher levels of sexual prejudice regarding same-gender parenting. Comparative cross-cultural studies have the potential to highlight common features but also specificities of sexual prejudice.
Keywords: Sexual stigma; controllability of homosexuality; cross-cultural studies; familism; gay and lesbian parents; homoparenting; sexual prejudice.