Men's Group

I don't know enough about feminist theory to comment authoritatively, but in most cases academic analysis doesn't seek to find solutions, and that is particularly true about post-structuralism/post-modernism. Theoretical approaches allow academics to ask a new set of questions and thereby enhance understanding. As someone who works as a clinical psychologist, I can see why you would find that frustrating.
I would also point out their is a vast range of feminist theories and academic analyses, not a single approach. Not all are post-modernist, and women's studies and academic feminism pre-date the rise of such theories to their level of current popularity. Foucault himself was of course concerned with subjects like madness, punishment, and homosexuality. Like most other disciplines, gender studies adopted post-structuralism because of its tremendous influence across the humanities and social sciences. Queer Studies, perhaps more than any other discipline, emerged from the conceptual innovations offered by post-modernist and post-structuralist theories.