Binarism

Binarism is the common but wrong idea that there are only two genders, expressed in a way that is a feature of colonialism and Western imperialism, in which other cultures and people of color are forced to conform within the white, Western gender binary system. Binarism is a form of sexism that erases ethnic nonbinary gender roles and identities.

Relationship nonbinary erasure
The word "binarism" is commonly used to mean nonbinary erasure. While they are related and sometimes interchangeable, it is important to acknowledge that there is a distinction. Binarism typically refers to a societal and cultural mindset that enforces a gender binary. A mindset that has been spread and enforced through colonialism. Nonbinary erasure refers to how the gender binary manifests in hiding the existence of nonbinary people. The distinction is that binarism also involves racism and cultural prejudice.