How does a work in sci-fi and fantasy qualify as a feminist or otherwise? Should gender based questions be part of the work and having only strong female character isn't sufficient? Case in point being the plethora of heroines running around in contemporary fantasy books but hardly any work can be qualified as feminist. Is it because the strong undercurrent of romance in the books where beneath all the demeanor of strength they still have their normal womanly desires and crave for submitting to a man? Carey's fantasy books which in some circles are labeled as feminist but I found them to be romance (I read the first three Kushiel books, skimmed the third because of the whole romance aspect).
Without making the question too broad or vague I'm directly asking is there any "specific thing" that differentiates the works? If yes, then what is it? Otherwise you can simply answer as NO or not answer at all which will indicate the opinions I've had may be correct somewhat.