The Comics Journal #253 (June 2003) published (at Dave Sim's request) two letters from Cerebus fans, Jack Baney and Allen Rubenstein, which had originally been intended for publication in Aardvark Comments letters page within Cerebus, but were omitted due to space limitations. Dave Sim's detailed response (over 15,000 words!) was published in The Comics Journal #255 (September 2003) and #258 (February 2004). What follows is just a short extract from that reply.
...Well, I have to disagree with you there. I did get isolated because I spoke out. People believe that being an anti-feminist is the same thing as being a misogynist or a racist. No, a misogynist hates women because they are women. A racist hates black people because they are black. What I have is a political disagreement with what I believe to be a wrong political direction that my society has adopted and a wrong political choice that the majority of women have made their own. It appears that my actions are, as you assert, "engineered to alienate as many people as possible" only because virtually everyone else thinks that there is a sound basis to Marxist-feminism and believe that disagreeing with Marxist-feminism is a sign of bigotry. I disagree. I think Marxist-feminism is bigotry itself, which maintains itself, as Mao's Cultural Revolution did, by ostracizing those people who are basically saying, "Dude, the experiment isn't working."
Ostracizing Dave Sim, ignoring and disparaging his work, while refusing to enunciate where you believe that the  Impossible Things To Believe Before Breakfast are not only not Impossible, are not only Possible, but are, in fact, Shining Truths of How to Conduct Our Glorious Society is very reminiscent of the Cultural Revolution. Your experiment isn't working. It is working less well as we go along. The enemy isn't the person who is trying to tell you that. The enemy is your own persistence in a misapprehension that doesn't suit the nature of free and democratic people. I can't rule out the possibility that God picked me for this job for the basic reason that He knew I would build a very small impregnable fortress.
I wouldn't have a publisher or an editor who could lean on me. I wouldn't have any advertisers who could be leaned on. I wouldn't have a wife who could threaten me or children that I had to worry about "having an evil misogynist dad." I wouldn't have any female friends that I wasn't completely prepared to lose out of my life (all of whom I have lost out of my life, willingly and happily) if it came to a question of appeasing them or sticking with what I believe to be the truth.
I would be working with distributors and retailers who have learned by hard experience that freedom of the press is meaningless unless you're willing to make work available that other people want to read, no matter what you think of it personally. I would have a business partner who would accept that -- in terms of written content -- it is my book. I have offered twice to include and/or write on Gerhard's behalf any disclaimer Gerhard wanted to run in the book, disavowing his having anything to do with the written content. The first time he said that he was pretty sure that no one would believe that he agreed with what I was writing. The second time he simply said that it wouldn't be necessary. So that is where and how things stood and stand here in the small impregnable (so far, God willing) fortress.
That left only the "mob" and a flat-out Marxist-feminist "Enemy of the People and the Glorious Revolution" "hanging in effigy" on the Internet, character assassination, lies, gossip and innuendo as the only means available of attempting to destroy me. If I had a nickel for every time I've been called insane since #186 came out, I would be a very wealthy man. A lot of people are convinced that I must be suicidal, doing without friends as I do. On the contrary, given how those people responded to a simple minority viewpoint, I count myself to be very lucky to have found out who and what they are so that I didn't have to waste any more of my time on or with them. I'm not insane. I am a perfectly sane individual living a very coherent and simple life, a large part of which involves metaphorically staring down virtually every other person in the comic-book field who is, to my own great amusement, waiting for me to flinch.
Folks, I'm not going to flinch. I have nothing to flinch about. You will flinch (you, in fact, have flinched, and are flinching) because you can't answer my argument. You can't even address my argument. All you can do is indulge in mob behavior, character assassination, lies, gossip, innuendo, calling me insane and hoping that that will drive me insane, believing that I'm suicidal in the fervent hope that I will kill myself and that (in the brand of logic peculiar to Marxist-feminists) that my argument will therefore die with me. I haven't indulged in a single one of those unbecoming approaches to societal discourse with any one of the people that I am metaphorically staring down. I don't have to, because -- until a female member of your ranks can present a coherent counter-argument to Tangent and the  Impossible Things To Believe Before Breakfast -- I am the one who is in the right and you are the ones who are in the wrong. You were wrong to ignore my argument, you were wrong to engage in character assassination, lies, gossip and innuendo when you had no answer to my argument, you were wrong when one of you claimed to have threatened me with physical violence, you were wrong to indulge in character assassination, lies and innuendo when I answered that claim of a threat of violence in a like fashion. Under your own Marxist-feminist standards (however degraded they may be) I am right and you are wrong.
Sorry to hurt your collective feeling like, but, you know, there you go...