> Interestingly enough, there's not much animosity toward trans-men.One of the interesting things about spending the last few years studying Western European post-Roman history has been the discovery that, in the West, there has historically been relatively little resistance to AFAB folks "presenting" (speaking of the interpretation at the time--the dichotomy between "presenting" and "being" is one I am thoroughly not qualified to negotiate) as male unless tied into homophobia. There are historical examples of folks who outwardly identify as women taking on male roles in monastic life, and it's often portrayed as a good and pious thing.
The reverse, it seems, is generally not true, though not exclusively so. I've read of, but don't have offhand, accounts of Church investigation into "male nuns" that ruled that the erstwhile offender, a male who had suffered prepubescent genital damage, had committed no crime being raised by a particular convent as a woman. But cases going the other way round are much more common.
In terms of today's relations, however, my intuition is that the fear regarding transwomen is that it's largely a performative flavor of misogyny and the fear of those of the "superior" set somehow damaging all men, much as the performative flavor of homophobia does the same with regards to gay men but shockingly much rarely with regards to bisexual or homosexual women. But, of course, that is just an intuition.