"I will use the theories of X, Y, Z [names of famous theorists]"
[plot summary of a novel, with no theoretical content]"
"Use the pronoun that the student prefers."
[Usually I address everyone with the same, non-gendered pronouns: you, or tú.]
The confusion of gender identity with styles of gender presentation. The proliferation of identities that are more like styles.
Politics (collective matters) confused with individual preferences.
The reduction of politics to language, or the political correctness / incorrectness debate.
The idea of a spectrum. Some things have a spectrum, others do not. If we put something on a spectrum, we are trivializing the problem represented by the extreme end of the spectrum.