Because men are more right wing.
>but why don't women like anonymous imageboards?
Because they're used to their opinions being validated because of their appearance. On anonymous imageboards, their left-wing opinions look fucking stupid and because we're not their boyfriends they don't get any validation for those shit opinions.
some women like using anonymous imageboards, but most and even the "right wing" kind are lonely sluts who used to camwhore. And women like Emily Youcis casually bragging about browsing /pol/ make themselves look like they're looking for validation in right-wing spheres for browsing le edgiest right-wing cesspool