Reciprocal alterity has always been exclusive to relations between men.

Evidence

Society has always been male; political power has always been in men’s hands. … For men, the counterpart—or the other—who is also the same, with whom reciprocal relationships are established, is always another male individual. — Simone de Beauvoir, The Second Sex, 164

Categorization

• XREF: Echoes the reciprocity-under-mutual-recognition themes of Sartre and Hegel’s master-slave dialectic, but Beauvoir splits master/slave from male/female. — connects to: Homo politicus was almost always expressly male across Western political thought. — Wendy Brown, Undoing the Demos: Neoliberalism’s…, 195
• DEFINE: Defines the distinction between reciprocal alterity (male-male) and woman’s non-reciprocal absolute Otherness.