The observed differences is due to choices like having babies and choosing different career paths, but for the same job it's objectively illegal to pay female workers less.
The feminists argue by taking the average of all wages, and of course women produce less economic value overall when they're still the primary caregiver in most societies.
The real crime is because the value generated by primary caregivers is not in dollars changing hands, and thus not taxable, no government has any interest in honestly measuring that value. The value of a primary caregiver is massive and it's criminal that we as a civlization have demonized women and men who choose to fill that role.
The feminists argue by taking the average of all wages, and of course women produce less economic value overall when they're still the primary caregiver in most societies.