Abbhorsen, you've claimed that the brains of transsexuals are different than 'normal' male or female brains.
Are they the same as brains of the opposite gender though?
People seem to forget (or never have known) that the pituitary gland, is a part of/is attached to the brain, and that is what governs the development of sex characteristics and hormones.
IE, if your body has in fact developed the sexual characteristics of a man or a woman, your brain is that of a man or a woman, not that of the opposite.
There are two types of people who can be/are exceptions to this. Chimeras, people who IRL have two different sets of DNA, may have both types, and depending on what parts of the body develop based on what set of DNA, may have a mixture of characteristics. There's also what is sometimes (at least back when I read up on it) called 'intersex' or similar, which generally results from having abnormal chromosomes, extra chromosomes, or both. Both of these conditions are serious health hazards, Chimeraism usually resulting in stillbirth, and being 'intersex' usually at a minimum results in infertility, though in very mild cases can just have a very 'butch' woman or very 'bishi' guy.
In these specific cases, you can in fact have a conflict within the body over whether the person is male or female.
But the people claiming to be trans overwhelmingly do not have either of these conditions, do they? In fact, they start out with perfectly healthy bodies that are or are developing into the normal range of expression of physical characteristics for their sex. Sure, some 'trans' guys have lower than average testosterone, some 'trans' girls have higher than average testosterone, but the overwhelming majority are still within the normal range for their sex.
This does not change the fact that, before hormone and surgical treatments begin, fully healthy examples of their gender.
After treatment? They are sterile, with permanent scars on their body. At best they have partially functional facsimiles of the sexual organs of the gender identity they are trying to assume. In most cases, they have non-functional facsimiles. And this is if they undergo these treatments as adults.
If they do so as children, permanent skeletal problems are not uncommon, cancer risks rise substantially, and they will likely suffer permanent lose of growth as well.
The functionality and health of their bodies has been permanently decreased. They can never recover what has been lost.
And above all of this, suicide rates amongst transgender people have not been observed to drop post-transition.
If an adult wants to do strange things to their own body, that's their own business. I'll try to persuade them it's not healthy, but it's their body. Pushing this stuff on children is dangerous, and can and will have permanent consequences for the rest of their entire lives.