Are their human cells - other than in some occasional hermaphrodite other rare humans that have sex chromosomes that don’t fit the normal XX or XY pattern - no. And even when there are chromosome abnormalities such as XXY, XXXY, ect, the presence of the Y chromosome generally resolves the biological and physical gender to male, and without to female.
So their own biological circumstances of abnormal chromosome patterns and ambiguous genitalia, but again the sex chromosomes, X and Y, and the presence of absence of the Y it the vast majority sets the gender. None of that is about “transgenderism” which is not about ambiguous or abnormal sexual differentiation in the nucleus of every human cell in someone’s body, which does not differ in the cells of the same body.
No, transgenderism is a mental problem, an obsessions continued and entertained to the point where the individual has an identity dysphoria - rejection of the actual gender identity there body has. To use the rare occasions of hermaphrodites and even rarer abnormal combinations of the sex chromosomes as templates for what gender means to the vast population, is intellectually dishonest. It suggests that merely since such differences do appear, naturally, that normal gender is therefor “fluid” and that is simply a lie. It is not “fluid” if you were not born with BIOLOGICAL conditions that somehow make BIOLOGICAL gender “ambiguous”.
There is no “biological” ambiguity with transgenders. Just a mental problem. Their bodies have nothing “wrong” that needs “fixing”. They need professional help to stop satisfy the identity dysphoria that has taken hold in the mind. Yes, the easy solution, just like an addiction, is to satisfy the obsession, just like it is to satisfy and addiction, instead of mounting the struggle to fight it.
Yes, that fight is a struggle and there is hurt and sadness and anxiety in it. But, we act against obsessions and addictions because they represent the mind literally lying to us, convincing us that something that is wrong is something we need.