No, that's exactly what Katz says - that all men are responsible for upholding, maintaining, and benefiting from a system where men pervasively abuse women as a part of mainstream norms of masculinity.
Refusing to take responsibility for that is what is reprehensible because it’s directly correlated with the fact that most women have been abused by men in this culture.
Men’s violence against women is a pervasive social phenomenon with deep roots in existing personal, social, and institutional arrangements. In order for people to understand and ultimately work together to prevent it, it is first necessary for them to engage in a great deal of personal and collective introspection. This introspection can be especially threatening to men, because as perpetrators and bystanders, they are responsible for the bulk of the problem.
In some cases, old-fashioned guilt keeps men from delving in too deeply. They are ashamed of their own behavior and would rather not be reminded of it. Some men avert their eyes because they are afraid of what they might learn, not only about themselves but about men around them: their brothers and friends.
Finally, many men participate—in peer cultures and as consumers—in what feminists have described as a “rape and battering culture.” They laugh at sexist jokes, go out with the guys to strip clubs, and consume misogynistic pornography. So even though most men are not perpetrators, they nonetheless contribute to—and derive pleasure from—a sexist cultural climate where women are put down and sexually degraded. Thus they have little motivation to examine it critically and a lot of incentive to look away.
Katz, Jackson. The Macho Paradox (p. 25). Sourcebooks. Kindle Edition.
“Men shouldn’t feel guilty simply for being born male. That’s silly. If there is a reason to feel guilty, it should be about what they do or fail to do, not about their chance placement in one gender category.”
Katz, Jackson. The Macho Paradox (p. 30). Sourcebooks. Kindle Edition.