Apparently, you can't.
However, in general, to find compromise, you look for places where most of the people are willing to give a little. On one side, you have Boudicca90, who says transwomen are women in every important way and there can be absolutely no distinction between transwomen and women, and it is demeaning for a transwoman to have to get certified as a transwoman. There's not much room for compromise there.
On the other hand, there are people who say that you are born as either male or female, and any attempt to be treated like the wrong one, no matter what you do, is not just illegal, but a sin against God. There's not much room for compromise there.
So where's the middle ground? Well, there are people who have completed sex change surgery. I think that people who have been through the surgery should be allowed into opposite sex zones. i.e. transsexuals who were born male should use the women's facilities, and similarly for FtoM transsexuals....