The belief that sexual relationships should only occur between opposite genders is known as?

The belief that sexual relationships should only occur between opposite genders is referred to as heterosexism. This term describes a societal framework that privileges heterosexual relationships while marginalizing or discriminating against non-heterosexual orientations. It encompasses attitudes, behaviors, and institutional practices that uphold the idea that heterosexuality is the only legitimate sexual orientation.

Understanding heterosexism is crucial because it influences social norms, policies, and practices that can impact the lives of individuals who identify as LGBTQ+. Recognizing this belief helps to highlight the need for inclusivity and acceptance of diverse sexual orientations in society.

Homophobia, on the other hand, specifically refers to the fear or hatred of individuals who identify as LGBTQ+, but it does not solely encapsulate the societal belief that only heterosexual relationships should be recognized. Sexism relates more broadly to discrimination based on gender, while gender bias refers to preferential treatment based on gender, neither of which directly addresses the notion of sexual relationships being limited to opposite genders.