I can’t really get any clarity on what you are actually saying here.
Are you basically saying that there are a vanishingly small number of people for whom phenotype doesn’t match karyotype? I.e. a few DSDs among the many possible DSDs and a tiny, tiny, tiny percentage of human beings.
And are you using these extremely rare cases of genetic disorder to argue for all trans identified males to be allowed into spaces and groups reserved for women when these groups have nothing to do with one another?
Or are you using these rare edge cases to argue that sex is somehow impossible to define, so being a sex realist is a deeply flawed understanding of the world? Despite sex being a bleeding obvious characteristic of almost every person you meet.