In general, I think what people need to realize is that even if they aren't feminist, for whatever reasons they end up not caring, be it opinions on morality etc. etc., what it ultimately comes down to in a civil society is the availability of disagreeing and still being taken seriously in disagreeing.
Well that much is true to some extent. As always when trying to find common ground, it implies everyone has the capacity to put his or her own thoughts into perspective. I can disagree just about anything, if I'm allowed to, but then anyone should be able to disagree with the fact that I should be taken seriously. Freedom is an absolute concept, there is no middle ground, which is why it is a much more delicate matter than just waving around noble concepts.
As far as this topic goes, if folks want to have flat shoes on Scarlett, sure, ask for it, I see no problem with that. But let's not make it a gender equality matter. That's not what defending the feminist cause is about. That's just falling in the cliché that every depiction of a woman in a video game has to be sexist, or worse, waving the sexist accusation to reinforce one's personal opinions. Quite the popular topic these days, and in many cases (not all) wrongfully so. I doubt Scarlett's heels has made any woman's life more miserable. There are other battles to fight to promote gender equality, some that are much more meaningful.