What is the term that describes the societal expectation that heterosexuality is the default or 'normal' sexual orientation, often leading to the marginalization of other sexual identities?

The term that describes the societal expectation that heterosexuality is the default or 'normal' sexual orientation is called "heteronormativity. " This idea suggests that being straight is the standard, which can make other sexual identities, like being gay or bisexual, feel less accepted or even invisible. For example, in many movies and TV shows, love stories often focus on heterosexual couples, which can lead people to think that this is the only way to love. When society treats heterosexuality as the norm, it can marginalize those who identify differently, making it harder for them to be accepted or understood. Understanding heteronormativity helps us recognize the importance of accepting and celebrating the entire spectrum of sexual identities.