It seems to me that the grouping of trans with LGB is very natural, albeit unfortunate because many straight people (here I use straight to mean cis-gendre as well) get confused by it. I tend to want groups for queers, not some long acronym which invariably leaves someone out, where a queer is anyone who has to come out. We're one big happy family of people who would've had their a$$es kicked back in high school. We want a lot of the same things, and face a lot of the same problems. Within the community, of course, there are different needs for different identities, but the expectation is (although this doesn't always happen as I know many of you have found) that people in the queer community are more likely to be accepting and understanding than straight people.
But yeah, there are some straight people who are never gonna get it. Sometimes they're well meaning (I doubt my mother will ever understand that a femme gay guy and a MtF crossdresser are two different things. She's a wonderful person, but that's just too much out of her realm of experience.) but oftentimes they're not. The thing is, by living comfortably as ourselves, and being open to questions in safe situations, we're gonna convince people to think more about their preconceived notions and hopefully change some minds.
I really was going somewhere with this, but I've lost what I was gonna say next. Just assume it was insightful and fascinating...