Toddler, could you elaborate on the 'patriarchies' bit please? Do you mean that there are myriad personal experiences of the patriarchy (as in, from individual women) or do you mean that there are intersecting effects of the patriarchy? If it's the latter you might try googling 'intersectionality' and 'kyriarchy'. I don't know if I subscribe fully to these ideas but I find their idea of 'privilege' hugely enlightening - it's the idea that sexism, racism, etc require ACTIONS, while privilege is something that we all have and might not know. So as a straight white woman who is virulently anti-racism, I would never dream of saying or doing something racist - equally, however, I might think that make-up companies offering one shade of foundation that vaguely might be useful for black skin is enough. It's not my skin colour, it's not my issue, because of my white privilege.
The whole 'multiple experience' thing sort-of informs my views on transsexuality. I must admit, I don't hold much respect for the views of the antis - but then, I wasn't aware of the activism that Sybil mentions until I came on this board, and when I learned about that I understood where they were coming from a lot more. However, I do think that trans-women are women - in my heart of hearts, I just don't believe that a trans-woman is a man hoping to traumatise women. They take too much shit for their choice - even higher rates of murder, assault, sex work and rape than 'born' women - for me to believe that that is the case.
Transsexuality is a truly huge issue. I have a friend who is passionately anti-trans because she thinks that all surgery does is reinforce the binary system of gender - MAN and WOMAN. She doesn't think that individuals should have to 'mutilate' (her words) themselves in order for them to live the life of another gender. She thinks that gender and sex should be radically divorced just as Simone de Beauvoir said all those years ago.
However, 'privilege' kicks in again and I just don't think that, as a straight woman whose gender perception corresponds with her sex (American blogs call this 'cis-gendered', as in the opposite of 'trans-gendered') I have the right to tell a trans-woman what her motives are and how her life is.