I'm not a troon but I have a somewhat unusual gender identity. I have a fairly feminine personality (I am not effeminate in mannerisms) and I am extremely "right-wing" on issues of race and national identity. A world created by anti-Whites would be very hostile to people like me, promoting a very low-level, degraded chauvinistic perversion of masculinity. No more poets, no more artists, just those who are able to survive the knockout-game culture for a few more days. Any true vulnerability and sensitivity ruthlessly mocked and targeted with violence.
I love strong White leaders because only with strength and competence can the sensitive nature some Whites (like me) have be sublimated towards higher things. I believe David Lane said that the Goddess of Peace could only sleep safely in the strong arms of the God of War.
I know this isn't exactly what you asked, but I feel it provides some perspective on why people who don't fully conform to "conservative" notions of gender might be interested in right-wing politics.