Attacking feminism is not equivalent to attacking women. Feminism is a political ideology that has evolved through a number of iterations and splintered off into a range of sub-groups with wildly conflicting beliefs.
Despite you insisting such, someone who claims to "hate feminism" does not automatically hate women. They could hate feminism for any number of reasons, including, as I mentioned earlier, the tendency of modern feminism to gravitate towards being pro-abortion and being openly hostile to women who are anti-abortion. People who are alienated by so-called "modern feminism" are left with the choice of trying to "reclaim" feminism or outright reject it and embrace the label "anti-feminist".
Only a fraction of women in America -- around 1/4 to 1/3 -- identify as feminist. They don't view feminism as the inherently good pursuit of equality between men and women. They view it as something far more politically tainted. With interpretations of what is needed for equality that go places they're not comfortable with. Parallels can be drawn to a wide range of outwardly positive political movements that over the years have gathered so much baggage people are uneasy about identifying with the label.
For a lot of women, finding out someone is a feminist is their "Oh, dear, another extremist -- shame, she seemed so sane" milkshake duck moment. That's worth chewing over.