Heterosexismnoun
The assumption made when relating to others that everyone is heterosexual.
Heterosexismnoun
Discrimination against homosexuals, bisexuals and asexuals in favor of heterosexuals.
Heterosexismnoun
discrimination in favor of heterosexual and against homosexual people
Heterosexismnoun
discrimination or prejudice against homosexuals on the assumption that heterosexuality is the normal sexual orientation
Heterosexism
Heterosexism is a system of attitudes, bias, and discrimination in favor of female–male sexuality and relationships. It can include the presumption that other people are heterosexual or that female–male attractions and relationships are the only norm and therefore superior.
Homosexismnoun
Homophobia.