Monosexism

Monosexism is the belief that monosexuality is superior to other sexual orientations, such as bisexuals, pansexuals, omnisexuals and polysexuals. Some see bisexuals as promiscuous.^[1]

Overview

It describes a form of discrimination that includes biphobia and panphobia as an extension of heterosexism,^[2] enforcing androphilia and gynephilia as an strict dichotomy.^{[3][better source needed][4]}