Of course it won't. They were all in these same societies.
Membership in sexist societies isn't a disqualifying factor in the halls of power, it's a prerequisite. What, you thought the patriarchy just happened by accident?
I agree that there are genuine problems in society today with Rape Culture. Kavanaugh doesn't give any indication he appreciates this problem. Many republicans also don't give any indication they appreciate this problem.
But membership in a fraternity != having raped someone. Saying Kavanaugh joined this type of group as a young man therefore the Ford allegations (from before he was a Yale student) are true is not logical. And merely being the type of person who would join a fraternity while in college is not disqualifying.
While I would agree that not all of those who are members of a fraternity rape, the person who joins a fraternity is more likely to be a rapist than the general male population according to an entire body of research. See citations below.
One particular myth associated with fraternities is the idea that forcing drunk women to have sex is acceptable. In her qualitative research Sanday (1990) found that some fraternity members approved of this idea and called it “working out a yes.” In addition, fraternities are associated with the sexual objectification of women through pornography and other means (Sanday 1990).
Schaeffer and Nelson (1993) found that residents in all male housing (regardless of fraternity status) were more traditional about gender roles and more accepting of rape myths than those in co-ed housing.
Stombler (1994) reported from her ethnographic study of “Little Sisters” to fraternities that these women were sexually objectified and commodified by fraternity brothers; for example, in some cases sisters were encouraged to portray themselves as sexually available to fraternity pledges.
Compared to non-fraternity men, fraternity men have been found to have more traditional attitudes towards women (Schaeffer and Nelson 1993); a more sexually permissive peer group (Lottes and Kuriloff 1994); stronger belief in male dominance (Kalof and Cargill 1991); and greater belief in “rape myths” (false beliefs about rape that tend to legitimize rape; Burt 1980; Boeringer 1999).
Boeringer (1996) found that fraternity members were more likely to have friends who had gotten women drunk or high to have sex, and who did not disapprove of this practice.
Fraternity affiliation has been found to be a significant predictor of sexually aggressive behavior in retrospective analyses (Lackie & de Man, 1997).
Murnen (2000) found that fraternity men were more likely to use degrading language to refer to women’s genitals than men not formally associated with a fraternity.
Prospectively, fraternity membership at baseline was a significant predictor of perpetration during the 3-month follow-up period (Loh, Gidycz, Lobo & Rohini Luthra 2005).
Bleecker and Murnen (2005) found that fraternity men were more likely to display sexually degrading pictures of women in their dorm rooms than non-fraternity men, and that the display of such images was associated with the men’s endorsement of rape myths.