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

[Creed of Heresy]

Yeah I gotta admit I can't see myself having much staying power in this particular thing, either. Again, I bring up Atheism+. I didn't participate in it, but I watched a lot of it, especially retrospectively. A+ was the confirmation I needed to change my stance from "feminist" to "egalitarian." Originally, the two required no distinction, but over the last few years, a distinction has arisen, and that was the moment when the distinction became quite clear. After seeing all that, I modestly posit that I'm not going to be easily swayed into calling myself a feminist again. My interest in feminism maxed out with the creation of my first post in this thread; further effort in considering the matter is not likely going to be eked from me. There are very few occasions in which I'll say I have taken a conclusive stance on something, but with what I've seen of feminism and the direction it's going, I'm in a rare state of mind to say I am morally and intellectually very comfortable with my current stance, and while as always I will be open to changing my stance if provided a satisfying reason to do so, I see that being as likely as being convinced of the existence of ghosts, god, or Gay Jesus.

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(When I say I don't see myself having much staying power in this, I don't mean I'm likely to give up my stance, I more mean I don't see myself finding getting drawn much into further discourse about the subject)