"Ism" is a suffix that implies a philosophy. An ism is a suite of beliefs. Anything that is unconscious is, by definition, not an ism. Racism refers to people with a philosophy of racial hierarchy, or ideas about race that evoke or imply such a philosophy.

For instance, Buddhism is a suite of beliefs about enlightenment and transcendence. We don't refer to people as "structural Buddhists" simply because they have equanimity.