Those are two real medical diagnoses - Swyer syndrome or XY gonadal dysgenesis for XY women (occurs in about 1:100000 women) and de la Chapelle syndrome or XX male syndrome for XX men (occurs in about 1:20000 to 1:30000 men)
Here is a NORD report on Swyer syndrome, as well as the original article on de la Chapelle syndrome: 1.https://rarediseases.org/rare-diseases/swyer-syndrome/ 2.https://pmc.ncbi.nlm.nih.gov/articles/PMC1762158/
What I read was “don’t let these bastards stop you”, as in “whatever they do, you have your place in science or any other pursuit you make”.
It doesn’t mean “no change needs to be made”. Rachel didn’t give up, and was right about it, and it’s good she spoke up.