Here are 1600 Scientists, trusting in Actual Science, to defend Dr. Rachel.
“Though scientists are just beginning to understand the biological basis of gender identity, it is clear that many factors, known and unknown, mediate the complex links between identity, genes, and anatomy.”
https://thehill.com/homenews/administration/414457-1600-scientists-sign-letter-opposing-trumps-plan-to-redefine-gender“The science on gender is very much still in development, but more importantly, the lived experiences of transgender and intersex people should not be co-opted by a genetic test.”