OK - namechanged again since I'd be identifiable from this and chasing the candidate down on Twitter for an email.
Response from my Lib Dem candidate - quite some distance as a 3rd candidate in my constituency but very strongly Remain area so I guess probably hoping for greater things....
I raised contact sports, residentials for teenagers and domestic violence refuges (weeks ago, before Swinson & Jardine but referencing Berger and Moran).
You may have seen my other replies on similar subjects on Twitter.
If so you'll have realised I do not take a hardline view on this subject, and want to hear from people who have practical questions like yours which need resolving.
I respect the rights of people who want to be recognised in a non-binary gender identity. Many of these people are vulnerable, have experienced high levels of discrimination, violence, mental health problems and suicide. We need to do more to make life easier for them.
I can see that this recognition can cause concerns for some women and girls, including in the kinds of examples you give. And clearly all women and girls have the right not to experience violence, from any quarter. But we should not assume that transexuals or others with non-binary gender identities are more likely to commit crimes than the rest of the population.
I would hope that both the law, and institutions like schools, hospitals, councils, prisons and refuges, can find a way to reconcile these rights as far as possible through consultation, dialogue and practical compromise. The law already provides significant protection to girls and women who are attacked, whatever the identity of the attacker. But institutions who make the kinds of decisions you refer to need to take account of the rights of both parties. I'm not saying that is always easy. But I would hope sensible people who can see both sides can find workable solutions.
So basically let's all presume unicorns for a hypothetical we hope won't arise despite evidence it already has. I'm raging. The possibility of harm for people suffering gender dysphoria is paramount. The reality of detriment - up to and including abuse, violence and death - for women already happening is ignored. And if violence happens in future, well there's legislation to deal with it after the event so that's OK then.
I'm not bloody voting for him.