Short answer: not reliably. Current evidence suggests psilocybin use does not consistently change authoritarian attitudes. In a recent analysis pooling data from three studies spanning naturalistic psychedelic users, healthy volunteers given psilocybin, and patients in a trial comparing psilocybin with escitalopram, researchers found no significant average change in authoritarian attitudes after psychedelic use.
This does not rule out individual or context-specific shifts. Effects on worldview likely depend on who takes it, the setting, timing of measurement, and how attitudes are assessed. Larger and more diverse studies are needed to clarify when and for whom changes might occur.
Bottom line: there is no strong evidence that psilocybin use automatically reduces authoritarian attitudes.