A person undergoing a breast augmentation may be dissatisfied with their surgery, or have mental health issues, but the patient isn't demanding that the world pretend that they're Pamela Anderson and treat them as such.I suppose you could then ask the same of people who have breast or bum implants or pen extension surgery etc etc. The parts being made aren't real but I doubt people would say everyone undergoing cosmetic surgery was mentally ill. Some are, some aren't. Technically a pen is an enlarged clitoris, men have breast tissue. You could argue the basis of the parts is technically there in both sexes.
The genital organs share the same embryological origin, but it doesn't mean one is technically the other, having undergone development and differentiation.