LRD who are the "some" men?
Marx proposed that "historical materialism is the view of the course of history which seeks the ultimate cause and the great moving power of all historical events in the economic development of society, in the changes of the modes of production and exchange, in the consequent division of society into distinct classes, and the struggles of these two classes against one another"
As I remember, Firestone broke ranks with the civil rights activists because not enough emphasis was placed on women's issues. Despite the fact that civil rights encompassed all rights of the oppressed groups.
She proposed that " Historical materialism is that view of the course of history which seeks the ultimate cause, and the great moving power of all historical events in the dialectic of sex: the division of society into two distinct biological classes for the procreative reproduction, and the struggle of these two classes with one another; in the changes in the modes of marriage, reproduction and childcare...."
Firstly we can not have known and we do not know with any certainty that the first evolutionary steps taken from pre-historical tribal society would have lead in this direction.
However before we even think about procreation we must first produce the means to subsist just one more day. We must find food, shelter and protection. We reproduce the means of subsistence first, that is our overriding urge after which comes procreation.
Patriarchy is real, it isn't to be found in btw the ears of men. It is to be found within the superstructure above the socio/economic base. All explanations for life arise out of the need humans have to make sense of the material conditions of their lives, their lived experience. Because patriarchy is a social system built on the material base and as a "catch all phrase" can be used to explain the state, judiciary, institutions etc which also sit within the superstructure It is not the cause or the catalyst but a term used by sociologists and people to explain how those institutions have shaped relations btw men and women.
What actually creates the division of the sexes is what happens in the base structure, the modes of production and of course the biological differences btw men and women. What happens in the superstructure only reinforces this.
Which is why accepting that a social system has been the cause of women's oppression has led in my opinion to a situation where there is disagreement about biological determinism.
It stands to reason that if you believe women's oppression is not a casualty of the material or of the biological then you are left thinking that men created a complex social web simply to oppress women. So where does all the other forms of oppression fit into this?