UglyDumplig, please go and do a Biology degree! or even a GCSE. You are so confused. It's frustrating to read, as someone that is scientifically educated, and we've been having to listen to this confused waffle for bloody years now!
Intersex as you call it - even though the charities representing people with DSDs have explicitly stated, multiple times, that they find it offensive and prefer DSDs - disorders of sexual development - have nothing to do with trans and are sex-specific! Even the rarest and strangest mosaicism still result in development down either one of the other my 2 available pathways - male or female.