Why would Challenor be in the Scottish Greens?
The Green Party (Scotland) is a stand-alone distinct political party from the Green party (England and Wales). Although AC left the Green Party of England and Wales, there's nothing to stop her joining the Green party of Scotland.
Patrick Harvie, the co-convenor of Green party of Scotland, and a bi-sexual man, gives the impression that he has a problem with women. His replies to letters from scottish women are dismissive, patronising and curt. He has no time for them and makes his attitude plain.
He is a patron of Parents Enquiry (Scotland). It set off as a support group for parents of Lesbian and Gay children, with help from Stonewall. It has broadened its remit (suprise, suprise) and runs a help-line for the parents of trans children - which sounds ominous, if the parents are receiving Mermaid-type affirmation advice.
With friends like Patrick Harvie, there is a ready made avenue for recruiting trans children and their parents. The last thing this elitist, mens' rights politician wants is for some troublesome women asking questions, I should think.