Gender identity different from sex is a psychological disorder similar to anorexia. Look up the highly convincing article titled "Transgenderism: A Pathogenic Meme". Our post-post-modernist hyper-acceptance culture does more damage than good by taking the extremes of acceptance on many issues, including this one. In reality, it would be better for those struggling with gender dysphoria to get treatment than to be encouraged in their psychological ailment. Thus, this law would allow protection to both persons in established categories and, in the end, persons who struggle with gender dysphoria.