I compiled a list of arguments made by one poster over the past week who has been asking similar questions with the view that female people should allow some male people into female single sex spaces.
Here is the list, not in order, but the list of the arguments used so far.
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It is “authoritarian” to have toilets segregated by sex.
There is no 'right' to have toilets segregated by sex. While ignoring the restrictions applicable under Article 8.
The law is useless to have because it is not 100% effective in blocking harm to female people.
Female people are often alone with male people at work. ( ignoring that those female people have consented to being in a work environment with male people and that work place has safeguarding responsibilities)
Female people choose to have the freedom to risk rape so therefore they should accept male people in their female single sex provisions.
Male people with transgender identities get attacked in male toilets so female people must allow them access to female toilets. (based on a study with 369 trans people vs 435 061 people who were not trans identified where the figures reported used a wide range of harm and the word 'included'.)
There is no such thing really as 'sex' and if a male person has a cavity inserted into his groin, by a poor interpretation of an American dictionary that is enough to give that person the right to say they are female. And we can only assume that means that they should ignore the laws because this makes them dictionary authorised to say they are female.
Female people being asked if they are in the correct toilet for them, which has been happening for decades, is now supposedly a new phenomenon and it means that male people should be allowed into female toilets.
Apparently, blocking puberty of male people means that all male body cues are no longer detectable by female people.
Female people attack other female people.
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I think this thread is along the same lines.