First of all being a feminist doesn't necessarily equate to having a choice per say and is a spurious correlation to make imho.
We always had choices, "woman's rights" (sometimes legally supported even so far back as the earliest of written histories, and sometimes not since different cultures make those determinations and choices for themselves at different times) was around long before the very modern advent of feminism.
Feminists who have made several contemporary attempts to re-write and re-brand itself and replace it's predecessor (the woman's rights movement~ which was based in the philosophy of Utilitarian ethics and non-gender specific originally) that actually got us those rights here in America just fine without it's involvement and all by the vote of men ironically.
In other words I can't help it, nor do I need to help it, nor will I forget that: the "feminists" were very much against any male dominance or female submission to males bdsm or otherwise and within the bdsm community promoted a very anti-hetero-female dominance only agenda for quite sometime until the shift in modern society towards political correctness...when all but the more militant factions (who still exist btw) decided to change (ie window dress) their movement so they could taste of the previously forbidden fruit and still feel good about their feminism.