I think that dividing the world into black and white is a bad thing to do. The word "feminist" has overtly female connotations (just as the word "masculinist" has male connotations). Saying that being a feminist means you believe men and women are equal is saying that women
are somehow inferior to men and that people must therefore fight to
make them equal. If you believe that men and women are inherently equal (in a natural sense, if not a social sense), you don't need a label. Labels are for people who deviate from the norm. Thus, if you think women aren't equal to men and should be, you're a feminist. If you think that women aren't equal to men and shouldn't be, you're a misogynist. There's still a lot of gray in between, a lot of "other" categories. Take, for example, people who believe women should be equal to men in a society but that women aren't equal to men physiologically. They don't fit the feminist or misogynist labels.
Okay, that was kind of long and convoluted, but my main point is that painting the world only in black and white oversimplifies matters. Plus, I just don't like the idea that being a feminist (fighting for women's rights) is all right but being a masculinist (fighting for men's rights) is horrible. Men can be disadvantaged the same as women.
The more you know, the less you don't know.