[seebs]

I think it makes sense to use the binary for analysis, but to remember that more than one grouping can be involved at a time. So you can have a situation where two people are interacting, and each of them is Other for at least one relevant grouping. (A rabbi and a priest walk into a bar...)

Somewhere out there, a black car mechanic is mansplaining something to a woman who's ignoring him because she thinks blacks are uneducated.

Come to think of it, I'd guess that dynamics like that are probably more common that you might otherwise think, just because people will tend to shift to a way of thinking in which they're comfortable.