Bifobia

Biphobia can lead people to deny that bisexuality is "real", asserting that people who "identify" as bisexual are not "genuinely" bisexual, or that the phenomenon is far less common than they claim. One form of this denial is based on the heterosexist view that heterosexuality is the only true or natural sexual orientation. Thus anything that deviates from that is instead either a psychological pathology or an example of anti-social behavior. In these instances, homophobia and biphobia are largely the same.