Wow, who's your uncle kidding? I've seen your videos and pictures you've posted from time to time, how would you manage being (female name) anyways? You really look and sound like a completely different person. That's some epic denial he's sporting.

Seriously though, I'm truly sorry they're still not budging on this. Do you think homophobia's a part of it too? Do you think they'd be the same if you weren't partnered to another man? I see that a lot. I'm not sure if your family is religious or not, but sometimes the religious types seem to 'understand' (although not really) transsexuals better if, once transitioned, we settle into 'traditional family' roles. Do they think you're somehow corrupting their kids with two dads? If so, that's ridiculous, of course, any kid should be so lucky to have two caring parents who've been through an experience like yours and understand the importance of unconditional love and acceptance in raising them.
My mother's very conservative and religious family is like that. They don't know about me yet, and none of them have seen me since last year. I'm only 3 months on T, but I've changed enough that even the most self-involved among them would notice the difference. I keep thinking that I'm going to run into one of them in this city somewhere (big family, I'm one of 16 grandchildren), and it's going to start a huge feud where my mother isn't welcome to their events either. I feel guilty that she could be excluded because of me, which is why I've not gone to any gatherings since last summer. I'm lucky in that my mother is fairly supportive, and while I miss some of my cousins a lot, I'd be a lot more upset on her behalf, she's very close to her mother, who will probably shut her out completely over this. It hurts a lot to know I'll probably never see any of them again, and even more so that they'll probably blame her for 'how I turned out', so I can sort of empathize a bit.
It sucks that your family seems to be taking your mom's side in making you look like the bad guy. It's sad that they won't do some research on the subject, find first-hand accounts of other trans experiences in an attempt to understand it better. It's easier just to judge and cast you out. What you did and are still doing is NOT easy, you took the harder road of risking so much to be who you really are and a
better you. Be proud of that, even if they're not because they're ignorant. You never know though, there may be people in your family who would try to keep an open mind, and maybe your uncle's just trying to make sure you never get a chance to show them how much better off you are. Any chance of contacting other family members individually? I'm considering talking to my favorite cousin to see if I even have one ally in the pit of vipers.