@amerika @sim Besides different ideologies use language as a form of "litmus tests". For example, you will never see a progressive use the term Cultural Marxism ( they use the terms "diversity and inclusion" instead) because for them that's "white supremacist speech", even when the term perfectly describes the worldview promoted by the Frankfurt School.
Another example is that no right winger will use the term "reverse racism" ( they will use the term racism instead) because right wingers do not subscribe to critical theory therefore do not see racism as neither systemic nor based on a power relationship.
And that's how different groups "detect infiltrators" among their ranks.