Gender is assumed to be decided by a penis with testicles vs. a vaginia . . . and this isn’t neccesarily true.
Gender is also determined by chromosomes, and a man has a XY arrangement, while a woman has an XX arrangement.
So, what is to be said of conditions (like Kleinfelter Syndrome) where a man has an XXY, or even XXXY sex chromosomes? Chromosomes are at least as relevant as genitalia.
A James Bond girl (and European supermodel) named Tula was a person with XXXY sex chromosomes who transitioned to female.
Or maybe we can look at this in another way: Below is a photo of someone with an extra appendage from thalidomide, which causes severe birth defects (see below).
Thalidomide can cause a finger to grow out of your back.
So, if a woman was born with a penis and testicles growing out of her calf or back, we wouldn’t bat an eyelash if she wanted them amputated, simply because they don’t belong there.
What’s the difference with a “man” who wants to transition to female when he has unwanted and inappropriate body parts from a birth defect or excess female chromosomes or hormones?
People counter this point by quoting the Bible . . . and the Bible says everyone is male or female. I believe that this was true in Biblical times because prenatal care was nonexistant, miscarriages and still birth was common, and so forth. I believe that we have more such people today because modern medicine and prenatal care means that fetuses that would have died from defects are now carried to term.
I believe that in Biblical times, fewer transgender and intersex people would have survived gestation.
So, that Biblical statement was true back then.
Please note that my claims about intersex people less likely to survive gestation is a belief that I have, and not something I quote as a fact.