To restate the obvious, this is why the word patriarchy comes in useful. It's too easy to read "hate men as a class" as "hate all men", which is clearly not the same thing. Patriarchy is the system that favours men. It's perpetuated by individuals of all genders, including Pit's friend above, and affects everyone. But not all men are patriarchal, and not all men seek to unfairly use their patriarchal advantages.
They don't have to seek to unfairly use their patriarchal advantages, they have them, and will use them, without even trying.
I do not waste my time by talking to people who don't get that no woman individually hates "all men". (How would one even do that? The accusation is often made, but it is mostly hurled at women who simply do not wish to have sex with men. That's what is declared "hate" if a woman is doing it. I have never ever met, or even heard of a woman, online or in real life, who wanted to kill all men.)
People who believe in the "all feminists are evil man haters and soooo much wooorse than patriarchy" dogma are not worth talking to, nothing will convince them that feminism is about justice - they usually believe that justice means men get three quarters of the cake and women get one.
@PitPat: I understand why you were uncomfortable, I would be, too. One should get therapy for trauma, not reenact it on other people. But I get why s/he thought that therapy was no solution, considering what happened. It is a messed-up system that produces that kind of transman.