Anyway...
I have posted on here on more than one thread in the past about how I think a good women's network can be fabulous.
Ours has given me lots of support with git manager and shown me that other departments don't all work so dysfunctionally. It's enabled me to meet people I would never have got to meet in the course of my normal work, including some very senior ones. It's given me opportunities to work on projects I wouldn't normally do. It's given me opportunity to organise events like "bring your children to work" and various other things. It's given me the confidence to speak out in all-hands meetings, and given me a forum to discuss things like the pay gap, unconscious bias and so on. It's informed me about things the company offers, such as funding for study (my manager should probably have told me, but these days, I am more likely to know about things like that, because of my involvement with the women's network.) It's helped me learn about other areas of the business and the careers paths of senior managers. I've had some mentoring, I'm currently getting some coaching. Because of all these things, it's made me a far better employee. And hopefully, (just waiting on final approval,) it will be responsible for me getting seconded to another department in next month.
But if it's just there as a token, then it's not helpful. However, you can't ignore men all together, because they are quite likely to be the ones who head up divisions of the business (including HR, even if that is otherwise female-dominated), and they may well be the ones who can sign off extra funding to get in external speakers or trainers, or permit things like a women's conference or whatever. You do need some executive sponsors.
Men are also likely to have been the ones who have created the company culture. They will be many of those who are making decisions about hiring and firing and promotions and payrises and bonuses and appraisals. It's all very well telling women they're being held back because of unconscious (or conscious) bias and so on, but if all your managers are men, then they also need to know about that, else things are unlikely to change. The women's network may not be the ones who do that, but they can pressure HR to encourage them to put on awareness training or whatever else.
Of course you do get the ones saying, "Why isn't there anything like this for men?" Well, firstly, men can join our women's association, so they're not excluded. "But I'll be the only one there!" So welcome to almost every day of my career. I'm not stupid enough to expect any of them to change their attitude and try and make things more inclusive when I point this out, though. I also point out that if they feel they are excluded or discriminated against or disadvantaged, then they can put their case together and present it to HR, saying they would like support to set up a support network for the poor, disadvantaged, educated, middle-class, white men who are the ones who are making these complaints. Sadly no one has done this so far, because I think there will be much entertainment caused if such a proposal is ever received. 