Not only do women have a smaller brain, but the part responsible for managing complex abstract things has 3 times less neurons than we have.
Giving them equal rights as men is too big of a burden on them. Its beyond their capabilities to vote or participate in the workplace or decide a future for their country.
We need to stop this oppression and treat them as special needs who have 3 base goals - get resources, get sex and raise children. They shouldn't be burdened with extra responsibilities.