How is investigating the causes of a phenomenon a phobia?

By declaring somebody's identity an illness, famously done by Hitler who sponsored lots of investigations about similar phenomena related to race?

So by your argument we should act as if people with e.g. Dissociative identity disorder, are completely healthy, just because they "identify" as somebody, and we should not judge their identity ?

What about clinical cases of people who identify as Hitler ? Should we label that healthy in the name of progression ?

I'm sorry but I cannot be convinced that a condition where you want to mutilate your sexual organs and change through surgeries (to whatever) is healthy and normal.

It's also highly questionable whether it's even a stable identity. In dementia health care, there are many reports of transsexuals forgetting their opposite-sex gender identity, and becoming shocked and horrified at what has been done to their bodies. Perhaps gender identity is not as innate as activists would like us to believe.