"Trotz(*1) turned to her own background for an analogy.

“I’m a black woman from the Caribbean. At a time when black people like me would not have been allowed to go into the same toilet as white people, would it be okay for the Toronto Public Library to have a debate on whether black people were human?” she asked."

*1 "Alissa Trotz, a professor in Women and Genders Studies at the University of Toronto."

http://globalnews.ca/news/6102791/toronto-library-meghan-murphy-trans-community/