All the "Okay but this was said about the previous minority group so therefore I'm right' argument do not work.
Again, and I'm not dropping this. Gays and women and blacks and disabled people can all articulate what is different about them in a way that matters. The history of civil rights is not a mush-mouthed "I say I'm different, case closed."
This is simply wrong, I'm afraid.
Firstly, of course it's instructive to look at the way society has considered other minority groups in the past. And homosexuality is probably the best indicator in this respect, because (IMO) very similar dynamics apply as to transgender identity: both are conditions that narrow-minded people with reactionary, bigoted viewpoints can (and do) denigrate and deny along the lines of
"I'm not homosexual/transgender, and I know I'm normal, so homosexuality/transgender identity must therefore be abnormal, and anyone claiming to be homosexual/transgender must therefore be either lying (perhaps for material advantage) or mentally ill".
And it's both interesting and highly instructive that a) pretty much the same dynamic is happening wrt transgender identity as happened a few decades ago to homosexuality; b) homosexuality is (fortunately) now considered by the vast majority to be valid rather than deviant; and c) the very same groups which have been steadfast in their opposition to homosexuality (hard-line religious institutions, hard-right politicians and opinion-formers, etc) are also in the vanguard of opposition to acceptance/full accomodation of those with transgender identity.
Secondly, I again take issue with this idea about "articulating what's different about them in a way that matters", and the suggestion that transgender identity cannot do this and therefore somehow doesn't "deserve" to be looked at in the same way as homosexuality/civil rights/women's rights. This sounds to me like an extremely narrow-minded and intolerant view of transgender identity, and one that's borne of a fundamental lack of understanding.
Fortunately (once again), the whole of mainstream medical science and medical practice, plus virtually every progressive law-making body around the world, doesn't assess transgender identity in the way that you choose to do. I look forward to your PoV on transgender identity dying out, and ultimately being looked upon with a rightful sense of incredulity and abhorrence.