The following excerpt is from a current paper I'm working on. Hopefully, it compels you to start problematizing more categories, and in so doing, I hope it gets you to question what you "think" you know. Why? So that you may start to think of how ridiculous your prejudices and "isms" really are.
--- Go Time ---
INCORPORATING BOUNDARIES TO UNDERSTAND WOMEN
The category of “women” has been plagued by Eurocentric assumptions that have led to a globalized view of women as a group determined by biological constructions and the domination by an opposing sex category: men. This notion of a global identification of women was first addressed by Audre Lorde. Her research warned of how seeing women as a homogeneous group disregarded the varying ways women were oppressed by men, and albeit themselves (1981). This was further addressed by Chandra Mohanty in a now famous article, “Under Western Eyes: Feminist Scholarship” (2003). She is critical about assumptions made by Western, albeit women researchers and writers, concerning a singular patriarchal kinship system in which all of the women of the world are presented to presumably be affected by; regardless of race, class, and cultural differences.
In countless Western feminists’ works women are classified as a homogeneous group based on a general notion of subordination and exist outside of history, because intersections of social concepts, history, and location are not considered. “Instead of analytically demonstrating the production of women as socioeconomic political groups within particular contexts,” women are limited to a definition based on gender identity, “completely bypassing social class and ethnic identities” (Mohanty 2003:31, 38). Mohanty calls for intersections of race/ethnicity, class, gender, sexuality, and various cultural aspects, along with history and location to be considered when referring to “women.” The meaning and explanations of things thought to affect women must be configured according to those specific women’s sociohistorical context (Mohanty 2003:35). “It is only by understanding the contradictions inherent in women’s location within various structures that effective political action and challenges can be devised” (Mohanty 2003:33).
The next time you make a statement to the effect of "All women..." or "All men...", be aware of the inaccurate statement you're making.