People hate calling it transmisandry because they refuse to believe misandry is real.
It's ok bro you are allowed to acknowledge that misandry exists even on the "kill all men" website. Stop trying to appease misandrist idiots by calling transmisandry "transandrophobia" or "transandromisia". Call it what it is and acknowledge that misandry exists and you experience it too.
It's textbook respectability politics, and what kills me is that it really, really blatantly doesn't work, as evidenced by all the blogs telling "Transandrobros" or "Transandrophobia Truthers" to kill themselves.
It is impossible to appease radfems by submitting to language policing because what they have a problem with isn't the word "misandry," it's the idea of trans men being allowed to speak about the oppression they face at all.
They actually have a problem with any men talking about facing any kind of gendered oppression, even the lateral oppression of other men, because they're misandrists. Which is why they claim the word doesn't exist. If you have a word for a thing, it's a lot easier to identify the thing.
The specious argument they make is that misandry is not a thing because men are not systematically oppressed. Setting aside the fact that the patriarchy actually hurts everyone, you can say, yeah, as a gender men aren't oppressed, never mind the statistics that show that 80% of all murders are murdered men... but see, that's not what misandry would mean.
Misandry and misogyny are cognates to misanthropy, hatred of humans. Misanthropes do not systematically oppress humans. They do not have broad power over humans. The mis- or miso- prefix literally means "hatred of", and says nothing about it being systematic.
As it happens, women are systematically oppressed, so these people are pulling a bait and switch, claiming that misogyny means "systematic oppression of women" rather than just "hatred of women". If it meant that, then yeah, misandry couldn't exist. But it doesn't. Imagine a society where women are completely and wholly equal to men, you could still have a misogynist. (Though it'd be a lot less likely.)
Misandrists don't have systematic power over men in general. But boy oh boy, they sure have power over trans people (if they're cis). And if they're trans women, they have very little power, but they definitely can use what they do have to do a lateral oppression on trans men, enbies, intersex people, etc. If they're trans men... well, I feel deeply sorry for them, but they can use what little power they have to be One Of The Good Ones (tm) and argue that trans men aren't oppressed, which, um, dude, what if you developed uterine cancer? And no one would see you for it because you're a man? And insurance wouldn't cover treatment, because you're a man? This is not a hypothetical, men have died of this. Trans men are definitely oppressed, and if you don't believe it, and you're a trans man... wow, you've led a pretty charmed life so far, aside from the shit you get just for being trans at all. Did you ever talk to a different trans man, not from your socioeconomic class, before flapping your lips to betray your own people?
Anyway, misandry exists. But if you wanna call it transandrophobia rather than transmisandry because the fucking MRAs poisoned the well by attempting to argue that men are systematically oppressed, by women, and now everyone hates that word... go for it, guys. Hey, it lets you tell the people who are fucking obsessed with TMA/TME distinctions that sure, you're TME, but they're TAE, which might hopefully eventually make people shut up about TME, a contender for the stupidest social justice word in the universe. (Because it defines who is not suffering a specific oppression, which, in general, plays into Oppression Olympics really hardcore, and is really unnecessary, because generally we define oppression by who is suffering from it.)
There's misandry, and there's the pointed trans man tumblr misandry where people go "Why are you hitting yourself? You chose this! I am respecting your gender by including you! All Men Are Rapists! Kill All Men!"
Then there's the thing where people go to great lengths to talk about "what men are like" and "what women are like" while completely forgetting about the existence of cis people.
There's also the weird tumblr queer thing where people who live in a Seattle t4t polycule make confident pronouncements about sex and dating as a man, but they have literally never dated a straight and/or cis woman.
@alarajrogers "Those MRAs poisoned the well when they refused to bend the knee to us and thank us for systematically abusing men. Men don't face systemic discrimination because we define it as not discrimination when we do it. We lied about them so much that it was their fault!
"Wow, isn't it such a wild coincidence how every single person involved in the research of and response to rape and domestic violence is a feminist, and all of them are in the field for explicitly ideological feminist reasons, and all of them have that power because they enjoy the support of feminism, and they are all constantly and actively lying about male victims in order to harm them further and deny them aid and make the system complicit in their abuse? That is such a wild coincidence that all of these feminists did this thing for feminism, with the power of feminism, about the issue feminism finds the most important and pays the most attention to, facing no opposition from within feminism! It's a coincidence because obviously you can't make any observations about feminism because of it. There Are So Many Feminisms, after all. Wow, if feminism had power, that would certainly count as systemic discrimination against men, but if course it doesn't count because we say it doesn't count!"
most MRA didn't even use the term to say men were systematically oppressed. While some did many just simply argued men suffered bigotry and discrimination for being men and had people strawman those ones by claiming they did argue that.

























