ODD is a real thing. While diagnoses can be misused, especially by authoritarian governments, in general, psychs are neither particularly 'trigger-happy' about making serious diagnoses like that (especially for things that have no easy treatment, like ODD), nor is that an opinion cultivated in academic psychological literature, which often consists of psychs arguing over what should and should not be counted as a disorder in light of both personal variation and what is actually innate (or developed) vs. evoked by circumstances or valued by society.