genderism

Also called gen·der bi·nar·ism [jen-der , bahy, -n, uh, -riz-, uh, m]. the belief that there are only two genders, that a person’s gender is fixed at birth, and that gender expression is determined by gender assigned at birth.

Also called gen·der i·de·ol·o·gy [jen-der ahy-dee-, ol, -, uh, -jee]. the belief that gender is socially constructed and multifaceted, as opposed to biologically determined and binary.