There's a huge difference between non-conformity and having one's body mutilated by hormones or surgery. 

What's the difference between a gender-non-conforming man (a biological male who enjoys looking and acting like a woman but wants to be called a man) and a transgender woman (a biological male who enjoys looking and acting like a woman and wants to be called a woman)?

If the only difference is the terms themselves, then “gender ideology” is guilty of eviscerating the concepts of male and female of any objective meaning beyond “what I want to be called.” How can we ever hope to raise well-adjusted men and women who interact with one another in a healthy way when no one has any idea what men and women are in the first place?