I believe we do a huge injustice by pandering to one group by discriminating against another. Doing wrong by one group to try in right a wrong on a second group, whether it is real or perceived is immoral.
If you allow someone to merely say today I am a woman then have access to women only areas how do you plan on protecting young women that you may have just put in harm's way? I am not saying or implying that people that identify as transgender will necessarily harm anyone. I am saying is that changes like this can very easily be exploited by people with bad intentions. Therefore you are potentially putting people at risk for really no other benefit then to make yourself feel better. These things need to be thought through and emotion needs to be left out of it.