My native tongue (Turkish) is one language without grammatical gender. Learning languages with it, it was immediately clear to me that that was a problematic thing. Luckily no revolutions are needed, as languages tend to become more analytical and lose grammatical gender progressively.
I think that what enabled women to gain many rights and at times actual equality in most societies was/is technology. Before widespread use of advanced technology, we needed actual muscle power to survive, and that was what shaped the societies since hunter gatherers through various stages of agrarian societies. As machines substituted raw muscle power in many areas of production, women could become part of the workforce too. And thus we had a virtuous cycle of more potential and more power, which affected in turn women's rights and their participation in many other areas. Since the decades following industrial revolution, they became more and more present steadily in politics, academia, culture, etc., becoming quickly co-protagonists of modern life.
Thus, I believe women should really get into technology, and become actual tech people instead of many faux-techie types we see that are promoted as symbols of how feminist a workplace/org is or as figurines to "lure" women into STEM and IT. I really want women to be the change they want. Today, there are few women in FOSS that are famous and revered for their technical skills, actually only Jessica McKellar comes to my mind (and I'm not talking the designer types here). I think they should just force their way in into the building blocks of the ecosystem.
As males, what can we do? Well, a Linus-y mailing list turns me as a male (from Turkey where both men and women enjoy casual swearing). So we get rid of it, not only to include more women, but also more men from among the sensible, mature demographic. We also do away with the caricaturising stereotypes. Many people think a programmer is an asocial and overweight nerd living in a cubicle in the morning and isolated in a badly-lit room in the evening/night. So we can just not spread misinformation about us. We also maintain our decency around females, because many weird shit guys do that I read in similar threads here in the past is just straight-out psychopatical and very cringy. Other than that, it's on women to make the decision and pursue the careers.
I dream of a world where one's sex is just a biological detail that matters in their amorous affairs and private life. And, futhermore, I know that it's totally possible ATM. It's only a matter of time.