if people are that scared that something sexual would go on then that can also happen with girls
Absolutely, and I wouldn't be too surprised if it has happened in my units before. But that's not my point. Yes, teenagers experiment sexually. But a girl who has been raped by a boy should have the right to know that she doesn't have to share a tent with a boy. If there's a boy in her unit, she's not going to even consider going to camp. Girlguiding is supposed to be for girls and it's supposed to be a safe space. Do you have the compassion to realise this?
Girls who start a sexual relationship on camp aren't going to get each other pregnant.
And since men commit 90%+ of sexual abuse, adult women are vastly less likely to abuse a girl than adult women. This is WHY GG has never had a serious abuse case over the years and WHY GG has separate sleeping arrangements for men and boys. Unless you know of a magic wand that makes anyone who is trans (or probably even more to the point, anyone who SAYS they are trans) automatically unable to abuse according to their sex-based patterns?
The research says otherwise.
Are you telling the Muslim parents that their daughter "perhaps shouldn't come on this residential as there will be a transwoman there"? If so that's against regulations.
Are you discussing with girls that X is trans and in fact does have a boy's biology and won't ever be starting their periods and letting them know it's OK to talk about this? Because that's also against regulations.
Are you saying to young transgirls "we do know you have boys' bodies and it's OK to talk about it and anyone who asks you to keep your biological sex a secret is doing a very wrong thing"? Because that's also against regulations.
If a girl in your unit wants a girls-only toilet during meetings and knows that A is a transgirl and doesn't want to share a toilet with her, are you telling her that's OK and arranging for a toilet "for all" and a toilet "for girls" or are you telling her she's being unkind? I'm sure you're familiar with the concept of Rainbows going to the loo in packs!
I'm used to being dismissed due to my age by men (oh, you're too young, you mustn't know much about this topic; oh, you're so old you're out of date/not worth considering/no longer attractive) but I'm sorry to see it from women.