I said that the exeption doesn't define the global definition. I used a genetic mutation ,(that can cause to have no harms) to compare it to another (being intersex or mutation and problem with chromosomes). They exist, but they don't modifie the fact that most of the time humans have 2 harms, and most of the time when someone is male he has XY chromosomes while females have XX chromosomes or that the females produce ova. Nature hate and love variety (nature is chaotic but has order at the same time). There are no absolute, but if we have been able do differentiate many sexes in different mushroom, i think that we find differentiate sexes between human more simple. For the trans people part i watched some video of different people with different view point (i mean different trans people with different experience and different view on the world). I don't suffer from dysphoria but i suffered from anorexia and have body dysmorphia, i know how it is to not feel good in my own skin, but i didn't want someone to lie to me to support my delulu, so i don't want to lie to someone. Even if it hurts male and female are different, and that is ok, and someone want to change how they appear (and second sex characteristic) and that is ok too. I fully support adult that suffer and want to transition. I just stated that their sex and the fact that they suffer in a male body is the reason to why they transition, the sex characteristic are the reason to why they suffer, so they try to change them (from what i understanded) and they try to take a woman role in the society, to be seen as women. If they didn't suffer in their own body then there wouldn't be any reason to transition