Feminism has a lot to do with superiority. Its roots are in the women's movement for equality - political, social and economic. Since the days of suffrage (and even way before that) women have fought for such things as the right to vote, the right to equal pay for equal work, and to break social barriers by doing such things as riding a bicycle. It was about being given equal rights and not being treated inferiorly.

It's true that times have changed a lot, and I agree with one of the first posts on this thread that it's harder to distinguish a feminist from a non-feminist woman anymore. There are laws that protect equal rights (or at least try to). Women are still, though, generally more challenged at such things as being accepted as authority figures. Some of this is social and some of it is economic (ie., workplace titles and corresponding salary, etc.). Although it's now acceptable for women to ride bikes, a lot more men ride than women. I wouldn't call this a "superiority" thing because it's more of a societal role, but maybe I'm somewhat of a feminist in that I'm in favor changing the role a little more.

No, feminism isn't entirely about superiority. Today it's definitely less about superiority than it was before, but it does does still exist and it's definitely in feminism's roots.