Existing in our heteronormative, transphobic society can breed a lot of self loathing. When dealing with that, there's a fear that every good thought and feeling you have about yourself is self- delusion. This is compounded by watching the liberal, shallow exaltation of queer people in our culture. So it makes perfect sense when a fash says "I have nothing against you personally, but cmon your identity is ridiculous and is bad for society. " It's a hard truth, but at least it's not self- delusion.

And then there's validation as well. They get to be One of the Good Ones. One of the ones that's grounded and realistic, not delusional. It's a toxic mix.

I'm not trying to frame any fascist as sympathetic - or do the "they're racist because they hate themselves" thing. There's of course a base of political ideology that's ripe for far right radicalization. But I think the above is a big reason why there's attraction to existing, transphobic groups.