Feminist theory isn't consistent with equality. The various institutions based on the theory doesn't promote actions which are consistent with equality. Scientific research regularly demonstrates their claims to be false, and so the movement has brejected science because it is a masculine dominated, anti feminine discourse, and claim that physics hasn't solved fluid equations but has done equations based on rigid objects because there's a phallic scientific dogma. Is it really a surprise that a movement that promotes this attracts a disproportionate amount of crazies?