Late to this but I don't think I could get past a difference of opinion that fundamental.
One thing that has really surprised me, about myself, as all of the gender stuff has developed over the last few years is just how deeply the fact that I am a woman matters to me. I won't call it 'identity', because I don't believe in 'identity' in the way it's used in gender politics; but I have been really surprised at how deeply the fact that I am a woman has overridden any of my other tribal or cultural allegiances like class, sexuality, politics etc.
From being a lifelong (and once quite activist) Labour member and supporter I now find I can't bring myself to vote Labour because of their position on these issues. LGBT Labour and our local university Labour clubs are all fully signed up with Stonewall and Amnesty to the open commercialisation of vulnerable women's bodies that is the decrim movement. Online Labour feminist groups that I've loved and found supportive and enriching, are starting to be full of young women and transmen enforcing pronouns and calling older women terfs. I have a deep antipathy to the Tories but never thought I would end up considering voting for them just to protect my rights and existence as a woman.
Equally, I now feel completely alienated as a lesbian/bisexual woman from the whole 'queer' LGBT movement in which straight girls with pink hair can cheerfully call themselves 'queer', whilst lesbians are told that if they don't accept that middle aged male fetishists are lesbians they're bigoted. I hate the normalisation of 'kink' and the sexual grooming of children as some kind of essential part of LGB culture, in which anyone objecting to this, or to the saturation of culture by hardcore porn and commercial values, is called names and denigrated. It's all so deeply regressive, anti-progressive, confused -- sometimes I would go so far as to say it's actually evil. I've been shocked to discover about myself that materially being a woman, and having a daughter who will be a woman, is probably the most fundamental aspect of who I am. I could tolerate a difference of political opinion in a partner - but something that is so much part of my material being as my sex? I'm not sure I could get past that, to be honest. Sorry, this is all a bit bleak.