Patriarchy is not something men do to women, its a society that holds men as more powerful than women.
In such a society, men are tough, capable, providers, and protectors while women are fragile, vulnerable, provided for, and motherly (ie, the main parent).
And since women are seen as property of men in a patriarchal society, sex is something men do and something that happens to women (because women lack autonomy).
Every Mens Rights issue seems the result of these social expectations.
The trouble with divorces is that the children are much more likely to go to the mother because in a patriarchal society parenting is a woman's role.
Also men end up paying ridiculous amounts in alimony because in a patriarchal society men are providers.
Male rape is marginalized and mocked because sex is something a man *does to* a woman,
so A- men are supposed to want sex so it must not be that bad and B- being "taken" sexually is feminizing because sex is something thats "taken" from women according to patriarchy.
Men get drafted and die in wars because men are expected to be protectors and fighters.
Casualty rates say "including X number of women and children" because men are expected to be protectors and fighters and therefor more expected to die in dangerous situations.
It's socially acceptable for women to be somewhat masculine/boyish because thats a step up to a more powerful position.
It's socially unacceptable for men to be feminine/girlish because thats a step down and femininity correlates with weakness/patheticness.