Left handedness is "normal"Left handedness is not "normal"'nothing passed xx and xy'? Did you mean past? Frankly you are just displaying your ignorance here. First of all- there are certainly other combinations besides xx and xy- there is also xxy, xxyy. There is also hermaphroditism- which is not likely genetic but happens during development. And of course there are a whole host of things that can happen during development- and even after birth(Hormones control lots of aspects of sexual development)
There are also people born with three arms and other deformities. Do we call them "normal"? No, we call them "deformities" or abnormal. You don't reinvent language because you have a weird sex addiction. Nearly all LGBTQs are normal xx females and xy males who have adopted behavioral abnormalities. The males like to use each other's assholes as artificial vaginas (closeted heterosexuality) and the females like to use dildos (closeted heterosexuality). The status of LGBTQ is all in the mind. Mental abnormalities and habits and dysfunctions don't get special class status. Because if one set does, they all do. That's how equality works per the 14th Amendment.
Having blonde hair is not "normal"
Blue eyes are not "normal"
The key is that those conditions do no harm to society and are accepted. A persons sexuality is their own business
Having blonde hair is "normal"
Blue eyes are "normal"
Believing that your normal body has no arms or legs is not "normal".
Believing that your normal body is blind is not "normal".
Believing that your normal body is deaf is not "normal".
The condition of not being normal is called Body Integrity Dysphoria. The condition of not being normal is also called Gender Dysphoria. Neither are normal. A Dysphoria is a disorder. There is no blonde dysphoria or left hand dysphoria or even blue eye dysphoria.
A person's sexuality is their own business EXCEPT when they demand that YOU or I agree with their disordered belief. A man who believes himself to be king, might demand that his subjects get on their knees but so far, there's no law making anyone do that.
Blue eyes is actually less 'normal' than being attracted to the same gender.
Of course being gay- or having blue eyes- or even the concept of 'normal' is completely unrelated to Body Integrity Disorder
Body integrity identity disorder (BIID, also referred to as amputee identity disorder)[1] is a psychological disorder in which otherwise healthy individuals perceive one or more of their limbs or organs as alien to the rest of their body.[2][3][4][5][6] BIID is related to xenomelia, "the dysphoric feeling that one or more limbs of one's body do not belong to one's self".[7]
BIID is typically accompanied by the desire to amputate one or more healthy limbs. It also includes the desire for other forms of disability, as in the case of a woman who intentionally blinded herself.[2] BIID can be associated with apotemnophilia, sexual arousal based on the image of one's self as an amputee. The cause of BIID is unknown. One hypothesis states that it results from a neurological failing of the brain's inner body mapping function (located in the right parietal lobe) to incorporate the affected limb in its understanding of the body's physical form.[8]