Hi Edited,
This is Nemo, the writer. If you read the epilogue, you'll find where I've written how This Strange, Binary World hinges on the possibility of worst case scenarios in the everyday experiences of a non-binary person, and what anxiety it induces. It is about feeding paranoia, because it's made out of anger for being told I can & should only make products that have violent outcomes for my characters. So I did it, so I can point to this and say: "look. here's my horror story, it demonises everyone involved. now let me write happy endings."
Turns out you're right, it's actually: Nearly 1 in 5 women (18.3%) and 1 in 71 men (1.4%) have been raped in their lifetime (by any perpetrator). http://www.annalsofepidemiology.org/article/S1047-2797(12)00024-5/abstract
But as a piece of fiction, I went by common lexicon and understanding. 1-in-4.
Anyway, thank you for playing.