Never said that, I actually said the opposite, that not all bisexual want trans. But wanting or not wanting trans isn't sexuality, it's preferance. Sexuality is about attraction to a specific sex or both. Like it isn't biologically impossible for me to be attractedto masculine women as they belong to my sexuality, but they're not my preferance. A bisexual might not be attracted to trans, but that's because of their specific tastes, not bacause of sexuality. I'm unable to be attracted to a transwoman because they're the opposite sex, which makes for me biologically impossible to get aroused by their part. But if I were bi I could be biologically be attracted to their male sex and might like to date them or not, but it wouldn't be my orientation to stop them, but my personal taste. Sexual orientation is about ability to get attraction to one sex, whle attraction or lack of to specific types of people is a personal tastes.