As noted before with the "biological sex" bit, biology in reality is complex and messy. The binary that you speak of is useful for many purposes, but it's not even remotely some hard rule. Instead, it would be true to say that figuring out a way to accept their current physical form that leaves them as healthy as possible is obviously preferable.
Absolutely, and such should only really be available with very good cause, as determined with their health professionals, with full disclosure about the issues that it entails, physical and otherwise. At last check, though, that was already standard practice... for trans people. That similar ethics have long not been applied to sex change surgeries on intersex people and the overall willingness of the anti-trans crowd to accept sex change surgery on intersex people without the knowledge or consent of the people themselves seriously undermines any argument that they collectively care about those principles, though, rather than just invoking those problems as a dishonest pretense. Whether or not that is the actually the case for you, you've been tarred by their collective dishonesty because there's no easy way to tell the difference from this end.
