I think it is generally agreed upon that white males can say things that others can't say without running into death threats. It is also generally agreed upon that women are more likely to be abused for saying things.

That being said, epistasis's reasoning is still wrong. A kind reading blames the difference on misogyny, suggesting the non-misogynists send death threats to males and females alike. But that would only be true if a large portion of the people that send death threats to females would do so out of misogyny and not out of, e.g., an unconscious perception of women as easier to troll. You may argue the reality of that perception and you may want to change that, but disagreeing with it doesn't make it misogyny. That's just labeling every bit of discriminatory behavior as 'misogyny', which comes down to redefining the term.

Apart from being wrong, I think it is unwise to use language so bluntly. It makes most readers think "well, I'm not a misogynist, so nothing here applies to me", when the real thought should be "yes, interesting, how likely am I to discriminate against women? Can I identify the possibly subtle effects that lead to this discrepancy?".