He can identify as whichever gender he chooses to.
That doesn't change the fact that the prison estate is separated by (biological) sex. Not gender, which is a social construct and a giant load of bullshit
However, we won't be seeing viral petitions for Ayrton to be transferred like we did Tara Hudson, because Tara was far more "acceptably - visibly - female" despite the fact that they have a 7 inch surprise penis that, according to their escorting site, they enjoy using.
I fully expect to be called a TERF for this view. I disagree with that name. I am not a radical feminist. I will call people by their chosen name, I will (generally) use their preferred pronoun. However, I will not stand idly by when safe spaces for women - particularly those spaces where they cannot leave - are taken over by men, particularly ones who have raped children.