Ismism is commonly seen in academia, where terms such as realism, impressionism, romanticism, formalism, libertarianism, anarchism, naturalism, modernism, postmodernism, etc. are incessantly created and applied to every new situation.
Ismists are too focused on labeling everything to appreciate anything.
Etymology: English suffix -ism, referring to the doctrine or common set of characteristics associated with the root, applied to itself.
Academia today is rampant with ismism, with too many isms to count.