Feminists dream of a utopia in which women exercise not only the considerable informal power they’ve always exercised, but all the formal power too – modern feminism is, after all, the pursuit of female supremacy. How might it turn out, if women had all the formal power? History suggests it would lead to dystopia, not utopia:

http://news.yahoo.com/blogs/geekquinox/unearthed-peruvian-tomb-confirms-women-ruled-over-brutal-160013738.html