Essentially an appeal to build bridges. At least the argument is being acknowledged although it still appeals to the "be nice" by stating that But nobody should want trans people to feel unsafe or cast out, and barring a trans woman from women’s services seems the cruellest of personal repudiations.
It's that rohypnol again, it does sound cruel to ban "a trans woman from women's services". Words are powerful and we should use words more accurately.
Why the battle over trans rights is a minefield for Labour
https://www.theguardian.com/commentisfree/2020/feb/15/trans-rights-labour-leadership-candidates?CMP=ShareiOSAppp_Other