Yes. It's more disruptive and possibly dangerous to have someone that identifies as and has begun changing their appearance to match their identify to be forced to use gender specific bathrooms according to their biological gender, honestly.
Honestly at first it was kind of difficult to wrap my head around the notion because of my own lack of understanding and familiarity with the issue -- I was on the side of people that pushed gender neutral restrooms for trans people, but that's a very dangerous separatist mindset that needlessly singles people out and I had to check myself because it's just wrong. The arguments that support it (perverts under the guise of being trans women trying to sneak into women's restrooms, for instance) really aren't even an issue -- no boy is going to change his entire existence for the sake of being able to go into the girls' bathrooms and see nothing but stalls and tampon dispensers

and any man that dresses up in a wig and wants to go into a bathroom isn't going to be stopped by a damn sign, even now and even so, that has nothing to do with the rights of trans women to use bathrooms specified for their identified gender.