It seems that the hip word on the left today is intersectionality. I think it is a problematic concept. It is a long word and not in common usage. I am doubtful that it leads to clear thinking or good strategies. It seems to me that it is a progressive version of
"proactive" or "think outside the box." (perhaps the most inside the box phrase of recent decades. I think is less useful than "coalition" or "alliance."
Intersection has, I think, two meanings that commonly spring to mind. Neither makes this a useful term. First, when two streets come together. Second, in mathematical set theory-- an intersection is the set of items that have both characteristic A and characteristic B. I don't think either helps to make "intersecrionality" a politically useful term.
Here are sets A and B.
And, here is the intersection of A and B. Those items that are members of both A and B.