I think too many women excuse Posie Parker's behaviour as they agree with her on a single issue. If you look deeper into what she's actually done it's very murky.
She was banned from Women’s Place UK for being racist and Islamophobic
Link: womansplaceuk.org/changes-to-cornwall-meeting/
She’s aligned herself with white supremacy, Men's Rights Activism and hatred of women by appearing in that video with Jean Francois Gariepy.
She’s paired with organisations that are anti abortion, far right Christian fundamentalist and pro Trump. See blog from Jean Hatchet:
jeanhatchet.blogspot.com/2019/01/why-i-wont-be-standing-for-women.html?m=1
She admitted on her own website she’d been accused of supporting eugenics and forced sterilisation as she tweeted:
’Women who think they're men should be sterilised’
It's not really surprising that Julie Bindel (and most feminists) are not her biggest fans. She's really not helping women at all given the above.