As someone who appreciates common sense and scientific fact, it must be stated that the burden of proof lies heavily upon those whose claims lie outside of these areas.
Biologically, we normally come in two varieties, male and female, and this is scientific fact. There are rare aberrations caused by deterioration of the genetic code, often combined with inbreeding which makes dormant, unexpressed genetic mistakes carried by both mother and father more likely to appear in the offspring, such as where a person may be born with both gendered sets of genitals, just as there are people born with many other kinds of distressing, harmful birth defects or malfunctioning parts. These are not occasions to celebrate, but are a source of great trauma, confusion, stress, and shame to the individuals thus affected. When a person is born with both male and female parts, they are genetically male, but often raised as females because that's how they looked on the outside at birth. During puberty, male hormones, male attraction to women, male voice, and other male physical traits emerged, and many of these males then embrace their maleness and go on to marry women. Of course it's confusing and difficult for them and their families.
How can a male have female parts? The reproductive parts of both genders form from the same region of the embryo in utero. If a male Y chromosome is present, it becomes male parts; in the absence of the Y chromosome, it becomes female parts. So female parts is kind of the baseline if there's no "interference" from male genetic material. Sometimes, there is a genetic error that prevents or blocks the normal development of the male parts of a genetically male baby. So there can be some male parts, and some female parts from the embryonic tissue where normal male development was blocked in the same male baby.
Why anyone would drug or slice up a physically healthy, undeformed person, and inflict on them the anguish of uncertainty, the inadequacy of not fitting in either gender group, the feeling of being a freak that makes others shudder, is beyond me. When these kinds of ideas and conterminous body-altering drugs are pushed on healthy little children who are easily persuaded by adults, it's horrendous, criminal abuse.
Our gender is down to the DNA in every cell of our bodies, so mutilating physically normal people with knives or pills simply cannot change science. The wishful thinking of those who wish to fight against nature is just that, wishful thinking.
Trying to correct malformed people to their genetic gender seems to be a beneficial intervention, but destroying physically normal people is lunacy.
As a society, we cannot in good conscience support or approve the actions of those who wish to harm themselves.
The man who fancies himself a cat, who went as far as procuring multiple surgeries to make himself look like a tigress, ended up killing himself.https://en.wikipedia.org/wiki/Stalking_Cat
The doctors who agreed to perform these surgeries are partially responsible for his death, as is a society that cruelly allows such nonsense to destroy lives.
People who have difficulty accepting nature or facts of reality need psychological help and counselling, not surgery that will destroy them.
Our wishful thinking does not change reality. Mutilation under knife or via hormone manipulation cannot change gender.