Pogleswood, I didn't make either of the comments you have just attributed to me!
I have just been reading Julia Serano for the last two hours, and she has discussed at great length all of the things that make up femaleness, femininity and women. At no point does she ever mentioning the uterus, functioning breasts, contraception, abortion or any issue relating to women's reproductive health. Julia Serano even describes her penis as being a female body part.
You say that trans women have transitioned to a new sex. They haven't. They have undergone gender reassignment surgery - this has changed their gender, not their sex. Just because my reproductive organs are internal does not mean that they do not exist or do not matter.
A trans woman has the gender identity of woman. That is her choice. My gender identity is that I am female born. I consider myself to have a common bond with other female born people, whether they identify as women or trans men. The fact that trans men frequently still feel a common bond with other female born women is demonstrated by their presence in the lesbian community and in women only spaces.
Trans women do not have the same gender identity as me, and they are not the same sex as me. If they insist on taking over not just my gender identity but also my sex as their identity, I will follow the example of many radical feminists and start referring to my gender identity and disadvantaged group as being 'female born.'
I agree that women are not just their reproductive organs - they are so much more. But that does not mean that our reproductive organs are not part of who we are.