one of our problems is that even the gay/lesbian people tend to write us out of their histories too.
for example, here we have a "Stonewall Tavern" that commemorates the original, and how the riots kicked off the modern GLBT liberation movement ... but most gays think the original was purely a gay bar, and T-folk are not particularly welcome in the current incarnation, and the bar flies won't believe that the riots were police vs TS, and get upset if you ask them whether they think all those people were just cocks in frocks.
last week i saw a show on the telly called "The Homosexual history of Australia" that was very interesting, and filled in a few gaps in my knowledge, which is largely personal and anecdotal. However, only gays and lesbians got mentioned, and where movements like the 19th century "passing women" who dressed in men's clothes, behaved as men and married women, were referred to purely as lesbians, when clearly some at least must have been TS FtM's. And of course the other way round were just called gays, or at best cross-dressers. This show was made by a respected gay film-maker, but TS has been written out of the history.
and then there is personal experience; i am on an LGBTI standing committee that does good work in the community, and i find myself helping to campaign against the same-sex marriage ban (yes that dirty perverted law has infected australia too) and protesting, and helping to organise it, and when i mention TS issues, i get sympathy, but then a week later we have fallen off the radar, and the gays and lesbians have forgotten our concerns, and are not even gracious enough to be embarrassed when reminded.
frankly i am tired of being invisible, which is very dangerous, here i have seen several murders that are on the police blotters as suicides by gay cross-dressers, despite the total absurdity of the claim when even the most cursory glance at the evidence shows the inconsistencies.
so if you want to murder people for fun, come to sunny Australia and murder Trannies, nobody will even go looking for you.