Answer:
In her book Introducing Intersectionality, published in 2017, Mary Romero argues that such matters as gender, race, and ethnicity should not be approached from the perspective of one dimension. That experiences of being a person of color, being gay or having a disability differ and should be considered is a part of the colorful pallet of all applicable dimensions (or sections).
This idea is especially important in terms of social injustice and discrimination. In order to address these issues inclusively, all the possible variations have to be taken into account (for instance, lesbian black women experiencing multiple forms of discrimination). Otherwise, the people who do not fit into a widely accepted mold, could be left out, in particular, from the social programs.
