Thank you Debbie.
I met Debbie once. She was interesting and personable. I had no problem whatsoever with her clothing or desire to live life as a woman. However I intuitively perceived her as a man. I am sure a lesbian would as well. I would not have a problem with Debbie using women's toilets as I knew her. It would be different if I did not. I would have real problems with my daughter playing contact sports against a younger Debbie, and if I were in a crisis, vulnerable, and wanting a women only space I would not want an (unknown) Debbie there.
In short, Debbie deserves respect for being honest and realistic. She is welcome to live her life as she wants, as long as what she wants does not take away from the rights of others. Or, as she effectively suggests in the article, cause them to ignore reality and withdraw their boundaries.