"that there should be some exceptions to males being admitted to female-only spaces".
I'm not entirely clear on what pp are arguing here?
If the default is 'males being admitted to female-only spaces' because of how they identify, many women DO think that there should be some exceptions to this 'default', i.e. that there are either some males, and/or some spaces, for whom/where male access isn't permitted.
For many women this would be all males and all single-sex spaces.
I read it as 'you might be ok with sharing toilets but some women think there should be exceptions such as female prisons, where males are not admitted.' It seemed a very particular way of phrasing it.
Did others read it as 'there should be some exceptions to males being prohibited from female-only spaces'?