Full Frontal Feminism (Last chunk)

I understood Jessica Valenti's main arguement to be that the mistreatment of woman around the world is due to the harsh environment that people (namely men) have developed by way of their own masogynistic views and/or opinions. Besides these masogynistic men, whom do you believe to be at fault for the for this very unfavorable present which women inhabit? Furthermore, why do you believe women, such as Jessica Valenti whom are aware that these thingts are taking place around them, don't always speak out against it?