I am guessing the "women against feminism" thing is either right wingers or people who have been given a certain look at feminism by a certain group of people, either tumblrinas or manipulative mras.
They think that feminism calls for them to cut men out of their life or even hurt them (thanks, radfem hub), and have them all become lesbian vegans with a Smash The Patriarchy / Kyriarchy idea firmly put in their head. Due to publicity given to certain kinds of people, this is the kind of image feminism is starting to get - a loud and shrill shriek of CHECK YOUR PRIVILEGE and identifying as Quadragender whatevers, and using speech that is, according to people here simply letting off steam and expressing feelings, but to the outside world, resembling a hostile intention and malfeasant notions.
Essentially, Tumblr and some rather cunning MRAs are accidentally working together to poison the well.