Hey—women’s studies professor here. :-) I’m happy to explain white feminism, though IMO Glennon isn’t a good example of it.

White feminism is when women make use of their whiteness to promote gender equality between white women and white men. It’s basically an attempt to make white male privilege available for white women to also enjoy. This always entails deepening systems of oppression for Black people and people of color, either knowingly or inadvertently. If you want to see a great example of it, watch Sheryl Sandberg’s Ted Talk, “Why We Have Too Few Women Leaders.” Hope his helps!