"Naturally, cisgender women’s feminism starts with the general principle that patriarchy is a system that benefits men to the detriment of women, and empowers men specifically by disempowering women. In some form or other, most cis feminist thought argues for a crucial distinction to be made between sex – one’s biology – and gender, a social structure that dictates appropriate male and female behaviour. Trans feminists also believe that, while the difference between bodies and the cultural narratives we use to interpret those bodies does exist, such difference is not always easily recognized or mapped. Our sexed bodies never exist outside social meanings: consequently, how we understand gender shapes how we understand sex. The gender critical feminist idea – that there exists an objective biological reality which is real and observable to everyone in the same way and, distinct from that, a constructed set of subjective gender stereotypes that can be easily abolished – is an oversimplification. The way we perceive and understand sex differences and emphasize their significance is so deeply gendered that it can be impossible to completely divorce the two."