@ohdelay
Sorry, lost me still on a definition for gender. I want to know what people who use it and are defining it as something other than biological sex mean when they use it. Seriously want to just get my head round the conversation so I can work out what's going on.
The problem is that different individuals and political groups use 'gender' to mean quite different things. This is a problem, of course, in debates.
Most people seem to regard 'gender' as the more polite way of saying 'biological sex', so when gender is debated they think biological sex is debated.
Others see 'gender' as the way societies 'do' biological sex, i.e., the personalities, jobs, hobbies etc. biologically male and biologically female people are expected to align with, respectively.
The gender identitarians argue that one's gender can be an abstract, inner feeling. I am not sure what 'gender' refers to in that context as I don't possess such an abstract identity. But it might be a feeling that one wishes to live with the gendered rules and norms a particular society enforces on one or the other biological sex.
The latter is dangerous for feminism, as gender roles, norms and stereotypes are the weapons used to keep biologically female people down. This is because the new assigned identity 'cisgender', argues that everyone who never transitioned has an abstract gender identity which makes them very comfortable with the way their biological sex is treated!
I am sorry that I can't be more informative. I think Stock's Material Girl discusses three major ways the term is used, if you are interested in the take of a philosopher.