Question 1 - this seems rather silly to me, you can't say boys aren't male because they haven't fully developed yet. They have xy chromosomes and will develop into adult males unless something goes wrong.

If someone has all of their genitalia and reproductive system removed, they would still be whatever sex they were previously, just missing a few organs. Someone that has had their spleen removed is still human, despite the fact that most humans have spleens.

I think this is a failure of basic logic, of the all x are y but not all y are x variety. I think a book on logic would help, I had a class on logic and the text we used was called "A practical study of Argument" and I recommend it, especially if you continually lose arguments on the internet.

After reading quite a few of these questions I think what trips people up in the cases of intersex disorders the line gets very fuzzy and it seems like many trans individuals or trans rights activists are not so good with nuance. The vast majority, like 99.99% chromosomes determine sex and the rest are essentially special cases that are not really worth worrying about. The fact that there are sry positive xx males doesn't really mean anything, because they are very very very rare. As a biologist it kind of bothers me that tras and the like are only interested in chromosomal abberrations as a gotcha in a debate, because the human development process can take a genome that otherwise would not be able to develop and makes an entire human instead, its an amazing process that can go wrong in many ways and yet you have sometimes severe chromosomal disruptions and you still get a person, thats amazing. And instead of wanting to learn about development and how that happens you just yell XX MALES at people on the internet.