Sex is bimodal, by definition parents can't define a "right body" in this regard.
And anyway, at that point of understanding and manipulating human biology, "people" will likely moved beyond limiting categories such as 'sex'.
We mapped it out 20+ years ago. We learn more about it each year, but what's more, the extent of our knowledge increases exponentially, not linearly.
> Ontogenesis, epigenetics, environmental factors, ... there is a lot more on sex variant hardware front than genetics.
You act like these are factors that can't be controlled, if not entirely, at least to some degree.
> at that point of understanding and manipulating human biology
We are very nearly at that point. Within anywhere from 20-30 years, maybe even less. If you think "people" will have moved beyond limiting categories in that time, you're not thinking clearly about the past, but what's worse, you're not thinking clearly about humanity.
If you think we'll end up in a Star Trek-like world before we have the ability to successfully manipulate the genome, you can just look to the fictional history of Trek for that... we were supposed to be in the middle of the Eugenics Wars right about now. Turns out they'll come later, I guess.
We identified a few single genes in _association with certain risks, but literally nothing is understood in complex interactions and how environment and genetics make for the concrete phenotype.
Transsexuality is related to brain anatomy, which... is about the most obvious complex system in the body...
Have you had any introduction to bioinformatics at all? Your enthusiastic futurism is uncalled for.
We also thought to be at the edge of AI in the 50s, thought the mystery of the brain was about to be illuminated with the introduction of fMRI and weather prediction is only marginally better at what farmers were capable of for thousands of years. Nobody can extensively model even a single cell today. Do you know how prostate cancer cells ultimately always evade androgen deprivation therapy? Me neither. Nobody does. All we are celebrating is "this transporter may play a role" types of "breakthrough", achieved by extensive experimentation.
Humans tend underestimate chaotic complexity...
And again, what are you even getting at? To understand and manipulate transsexuality completely, you need to understand and manipulate sex expression completely. It's pretty telling that you assume "parents" will chose to eliminate transsexuality exclusively. Why wouldn't you rather have intersex humans? There is no inherent value to sexual dimorphism and the sexual evolution likely isn't related to survival, but rather costly (see birds).
Snails do fine.
Clown fish do fine.
Sex is overrated.
You just want to construct a reason to be edgy on transsexuality... don't you?
Sounds pretty bigoted, bro