White Women are not “Women”
There is no default “Woman.” There is no default female experience. Our experiences are shaped by many different factors: race, class, age, sexuality, religion, disability status, being cis or being trans, etc.
Making the privileged group the default ignores the ways in which different groups of women can be affected by a singular issue. Framing issues around the privileged group oversimplifies complex problems and erases the experiences of the non-privileged, who are often more adversely affected. Intersectionality is the key to including all women in the fight for gender equality.
So don’t write “women” if you’re only going to mention how white women are affected. White women are just one group of women, not the default.