For a counterexample, look at the use of the word "privilege", a new definition introduced to the lexicon to explain one of the expressions of prejudice in society. (If you're already poising fingers over keyboard in angry rebuttal, stop and listen.) Privilege is conceptually very simple - it is the absence of discrimination. The absence of racism, or of sexism.
Yet the very term arouses righteous fury, to be even mentioned in the presence of many privileged people. Just watch the rebuttals this comment will draw for examples.
So to my original point, if you introduce new language to describe the prejudice + power concept, it will be vociferously attacked by those who do not face prejudice + power in their daily lives.
Likewise, if you more precisely define an existing word from this world - say, racism - it is also vociferously attacked, by the same people.
And attacking the very language being used to describe the problem is part of the problem.