I'm sure I explained earlier that a man with low testosterone is still a man; a man with one leg is still a man, a man with testicular cancer is still a man, even if they are removed.
A spider does not become an insect if you cut off two of its legs.
A woman is still a woman after a hysterectomy.
As I said, JohnD, you are entitled to your opinion, even though it flies in the face of legal and medical opinion.
We've already proven that sex and gender is ambiguous, if you refuse to accept it, then that's your bigotry refusing to accept the blindingly obvious.
Just , as with race, there once was, long ago, a concept that humanity consisted of several different races. Science has now disproved that old-fashioned, Victorian, out-of-date notion, and proven that humanity consists of just one race, the human race. That old fashioned belief was based on pure bigotry.
Biological sex is at the same state in time. Once there was a Victorian, old-fashioned, out-of-date notion that sex and gender is binary. That notion has now been disproved by science, and modern day scholars recognise that sex and gender is not binary. If you wish to cling to that out-of-date notion, like a comfort blanket, you're entitled to do so, but that behaviour is bigoted.
If your child decides that meat is not for them, would you insist that he/she conforms to your rules, and you refuse to provide or allow vegan meals?
If your dinner guests believe that pork, or meat in general should not be eaten, do you refuse to cater for their beliefs?
If a Christian/Muslim/Jew/Buddhist, etc refuse to bow to your demands due to their faith, do you insist your beliefs take priority in their lives?
There are loads of examples where peoples' rights are legally protected. Just because your personal opinion refuses to accept it, does not make it so.
When your personal beliefs refuse to accept reality, it suggests that your belief is no better than any other bigoted person.
If I choose to believe that I am French, and I am entitled to French citizenship, despite being born in UK to UK citizens, the rights of a French citizen are conferred upon me by France despite the accident of my birth, and no-one's personal opinion can deny me that right.