If somebody without any apparent background in your areas of expertise numerical wave propagation and exponential asymptotics described them incorrectly and said that they weren't as important as other areas, how would you react?
Look, you use probability and the concept of GIGO everywhere - computing, sociology, physics, business, etc. Most people will never have any need for exponential asymptotics, oppression theory or the mechanics of securities markets.
Here is a diagram that most academics need to internalize: http://matt.might.net/articles/phd-school-in-pictures/
good diagram but i'm not sure why its relevant. i don't have a PhD in any of these things, i just find them very useful transformative techniques that most people don't know about -- or don't understand well enough to apply in practice.
But intersectionality is merely the hypothesis that the dimensionality of experiencing oppression is O(a^n) rather than merely O(n). I.e., discrimination(black woman) != discrimination(black) `simple operation` discrimination(woman). Similarly, as you note, oppression theory is a hypothesis + moral conclusions narrowly restricted to a particular type of social science.
Probability and the concept of "Garbage In, Garbage Out" are useful to all fields. The CAP theorem, the schrodinger equation and oppression theory are pretty narrow in their scope.