Robin, do you ever worry that you might have failed to be fair to women?
I listened carefully to the interview, and I have read quite a few of your postings. And what I don't see is "they might have a point, maybe I need to question my own point of view". What I do see is, "here is a way to attack their point of view and gloss over the weaknesses in my own argument". I guess that makes you a good lawyer - in an adversarial system law is more about picking holes in your opponent's arguments and covering your own sides' weaknesses than it is about discovering a shared truth.
Your answer to Sarah Phillimore about women lawyers was a case in point. First, you used the fact that there are some successful female lawyers (such as Sarah herself) to imply that having a male voice didn't give any advantage. That's questionable. And second you said that your own motive was that you could not risk damaging your voice by an operation, and not that you wanted to keep male privilege. That neatly took the high ground but it still doesn't rule out that your deeper male voice gives you privilege at work, however unintentionally. In which case you don't share the obstacles that women face in overcoming their lack of that privilege.
You don't face the same obstacles as women plus some extra ones for being trans. It's not additive. As a transwoman you do face obstacles, but they are different obstacles from those that women face.
And it's worth noting that the damage you have chosen not to risk to your own voice, is damage that some very young people are have chosen to risk to theirs, before they have the maturity to assess the risks that they are taking, and with a longer period to live with any damage done.
Obviously some privileges are more important to you than others, and so are some risks; but it's not obvious to me why women should prioritise the same ones you do. Both for own sakes as women a nd also as mothers of children who consider themselves to be trans, and whose future health and happiness we are committed to. What's fair for Robin might be fair for some people but it isn't fair for everyone. It's not witchcraft to recognise that.