Julia, If you could somehow write about this subject using layman terms instead of so much “biology speak” more of us would be able to understand what you are trying to say. Sex and gender is so universally considered to be the same thing that using them to explain mind sex and biological sex makes the subject even more complicated-even obtuse. The vast majority of people who confront the whole LGBTQ/TRANS reality are confused and therefore resist acceptance or tolerance. One tactic I have found useful is using the spectrum example. Most people have had life experience related to that idea. Who hasn’t encountered the hundreds of variations. This goes for males as well. Stereotypes exist because people can’t deal with all that diversity. We are socialized to expect certain things from males and females and therein lies the crux of the problem.
In trying to explain to people what I have experienced in my family regarding LGBT members,they will listen,sometimes sympathetically as I relate the stories of their struggles. Then they will come back with something like, “But why do they have to show affection in public?” or “Why do some flaunt their trans identity?” “It makes me feel so uncomfortable.”