Oh good lord.
Has anyone but us actually read or understood the SCJ? Are they downloading their answers from 12 year old aids?
Proportionate aim of invoking legal discrimination to provide single sex spaces at all.
Check. Such as for example, women having privacy, dignity and equality of access in a space where they are undressed. (Notes that there is no effort to argue that all changing spaces should be mixed sex because this is all accepted and obvious.)
Is that aim blown apart by letting other groups in? Such as men in women's changing facilities?
Check.
Does that leave men who don't want to change with men and can't use women's spaces because women have rights and needs too with an issue?
Check.
Solution?
Additional mixed sex spaces.
End of issue.