I skipped the Mr Atheist fisking and went straight to the source material to form my own opinions. Hope that's OK
So our two ladies quote "If feminism is simply the advocacy of women's rights based on the idea that men and women are equal then I'm a believer."
So far I'm with them. I certainly believe in equal rights and opportunities too. However my reluctance to call myself a feminist is that the term has been diluted by so many diverse definitions that seek to build upon that base. Their points, despite also acknowledging the breadth of opinion being described as feminist, is to list things that "all feminists" apparently believe. Most of which many feminists would disagree with.
Then of course they describe why they disagree with those things. No objective reasons. Just a mismatch with their Christian Beliefs. My thoughts on this are two fold. Firstly "funny how god always seems to think the same as you do" Secondly, if you remove a belief in God, or even one specific interpretation of God then, there's not much left of of these arguments worth addressing.