Because women have responsibility for so much of a household's spending and not all of us shop at Ocado for example to boycott them, I have a thought.
Would it be possible to create a portal which would clearly support women and our concerns, some kind of charity or non-profit which we could go to and through to then shop online as normal? So then the portal could calculate where these women shopped and how much they spent? Does that make sense? So you could clearly see how much economic power women with those views had?
Maybe the site could request responses from popular companies on questions women were concerned about and publicize them to their users? So for example I could easily search for Sainsbury's or Asda's policy on the GRA?