What is a Woman according to Hilary Benn
"This is summed up by the question 'is a trans woman a woman'? The answer, of course, is that a trans woman feels herself to be female and wishes to be regarded as such by society, and I support her right on both counts. However, that does not mean of course that she is physically a woman in exactly the same way as someone who was born biologically female is. This should not really be controversial, but I recognise that those on both sides of the debate hold diametrically opposing and passionate views."