Once again, though, Naomi and SK, all you are doing is confusing sex with gender. How society sees you is determined by rather more than possession or absence of a uterus.
Biological features, genetic make-up, etc, do play a large role in determining one's identity -- there's no point in pretending the two aren't highly correlated, because they clearly are -- but they are absolutely not the sole determinant. In the long run, it's up to you both to actually research this, because the evidence to support that is out there. I've suggested one topic, for example, that you would stand to learn a lot, one way or the other, from taking seriously and reading into.
I venture to suggest that it says a lot about SparklyKid that not only can you not be bothered, but that you also have to dismiss a cultural tradition that goes back millennia in order to justify your opinion.