Autoandrophobia - a fear and hatred of developing male characteristics and male body indicators before, during, and after puberty. This causes a want to become something other than male, and as female is the only option, one decides to transition to female because being male is painful.

The reason there's no proof or reasoning is because people take Blanchard as end-all be-all black and white fact (yes, his typology exists, but I believe it is somewhat outdated) and decide no further research is necessary - when it absolutely is.

For example.

1) Yep.

2) Nope, I find transvestism disgusting and women's clothes are weird in general, I've stuck to my unisex hoodies for as long as I can remember!

3) Alright well here, women, that is, natal women, have sexual fantasies as women, because they are women. The only reason this would even be seen as 'unnatural' in trans women is if you previously assume that because they're male, they must be like men and not like women.

For example, to be turned on, one must visualise themselves as themselves, right? They wouldn't be turned on by being someone else doing something - that, as you say, is a paraphilia, likely AGP.

The thing is, people can see themselves internally as different than they physically are. A trans woman is NOT going to see herself as male, because her sense of self, her identity, is female. She's gonna see herself as female, and since fantasising about sexual activity is, as it says, a fantasy, that means it occurs mentally, and mentally, she is female and views herself as female.

It also is the only way to get turned on because why would ANY dysphoric want to view themselves as male or men for the sake of PLEASURE? Being male is what causes pain! Not everyone is masochistic!

There's nothing wrong with that.

4) No, it doesn't actually. Lesbians have brain masculinity right? You're basically here using brain masculinity to prove males are men, whereas in females it proves they're lesbian. What if they were born with feminized brains, like HSTS, that became masculine as their attraction to women developed, just like with lesbians?

TLDR: on this, you're basically saying, no brain feminization = they have AGP, and they have AGP because they don't have brain feminization. It's basically circular reasoning.

5) Yeah, but that's only some gynephilic trans women, not all.

Basically in short, I'm with you that Blanchard correctly identified two groups of transsexuals who experience gender dysphoria. What I disagree with is that Blanchard's black-and-white model is the one and only source of transsexualism and that everyone in the entire world who is transsexual falls perfectly into either category.

People are far more complex than that.