What a lot of nonsense:
"In other words, a person’s body, either internally or externally, can be completely at odds with their chromosomes, with, for example, ovaries within otherwise male bodies, or internal testes in otherwise female bodies. "
" Yes, this is a boy, we were told it is, and the genetic test proves that.”"
This is misleading. In fact, while a person's body may be at odds with their chromosomes, that will only occur as a result of genes. It's a gene mutation.
It surely wouldn't be too hard to explain how intersex is a matter of biology, L, G & B a matter of sexual preference and T a matter of denying biology.