Their biological gender is a fact, it is not a fact that this should be the sole determinant in anyone’s gender though, nor do I think that this can simply be assumed given the existence of gender dysphoria.
Agreed. 
Their biological gender is a fact, it is not a fact that this should be the sole determinant in anyone’s gender though, nor do I think that this can simply be assumed given the existence of gender dysphoria.
Agreed.