The LGBT talking heads love to refer to the "intersection of identities." The people throwing that term around typically use it to mean that for any given person, you can go through a check list of identity groups to which that person belongs and feed the results into an algorithm that will tell you everything you need to know about that person. Do you see how that is different from a more elaborate way of stereotyping by race, sex, socioeconomic status, and the like? Neither do I.
Obviously, a person's life experience does affect who that person is now. But just as obviously, intersectionality as typically understood grossly oversimplifies human natures, as does politically correct reductionism in general. Just consider how differently siblings in a family can turn out.