ok i'll touch it. Rose is nuts. Her mind set is sort of like Trumps mind set. She will say whatever and whenever regardless what it sounds like. You have to figure out what she means through context clues rather than what she says literally.
In this scenario i think the trans-woman was at the wrong meeting.
Rose first said we are the same and we are all part of same abuse.
then the trans-woman said that Rose does nothing for trans-woman and started to bash her for things that weren't her fault.
Thats when Rose went full Rose and blew up. Because the book is about acting on ALL woman behave not just trans-woman.
I'm always 50% right all the time