Why so many "anti-feminists" in the atheist community?

[Dystopia]

global matriarchy that will survive for a thousand years.

[bold mine] - Your proposal doesn't change the fact that a global matriarchy doesn't fit into the idea of feminism, but rather misandry - It's the same thing as saying because I'm a capitalist I favour exploiting workers - I don't because I accept and feel the need of labour laws. You are proposing that but haven't provided any evidence that the majority of feminists think like that, simply reading an article of feminists defending men's problems like male rape will prove what I'm saying. The so called feminazis don't make up significant parts of the population and don't have power to impose their ideas to people, no one likes them really, who does after all?

Other problem is that you're defining feminism yourself conveniently. The fact feminism is fighting for equal rights doesn't change if you don't agree with the definition, your opinion on the definition is as irrelevant as mine on behalf of all authors and people with knowledge who've worked on it. Asking any feminist, any dictionary, a sociology book and all of that will answer you with the definition of equal rights... It's true that there's more focus on women, just like LGBT have more focus on gays and trans, but that's the whole idea behind the movement, it doesn't mean they'll oppress the other group ( men, straight, cisgender, etc) - Its important to say feminism is not the same as years ago and nowadays it's much more inclusive, i.e. When feminism started it was still racist and only for white straight women's rights and so on, nowadays it is for all races and focuses on men's problems (evidence of that is Betty Friedan who was a racist and homophobe)

In your case you claim to be agnostic, but imagine you were an atheist, and because of a minority of atheists bashing religious people everyone thought being an atheist meant being a bigot - Would you like that? It happens with atheism as well, the reason many people simply identify as agnostic is because they think there's a stigma associated with the word atheist as dogmatic.