I think "identity politics" is a term of art which covers things other than that which aren't bad, like minority struggles.
You've got a point, and it's one that gets into hard issues. It can be quite hard for some people to decide whether they're being unfairly mistreated and to act on it, and the people for whom the decision is easy aren't necessarily sensible. Emotions are not a reliable tool for telling whether acting on a feeling of being unfairly mistreated makes sense.
How do you tell to what extent is a particular instance of people feeling outraged them just getting worked up for the fun of it over something they should endure, and to what extent are they building up enough allies and emotional energy to deal with a problem which (by utilitarian standards?) needs to be dealt with?
Here's the new thread for posting quotes, with the usual rules: