Documentaries are compelling, but they are the lowest-signal and most manipulative forms of rhetoric. Heavily biased & one sided, emotionally manipulative. They impose an uncritical point of view because of the first-person perspective (the camera puts the viewer in the room).

I include citizen footage in this as well. Even un-edited "raw" footage is shot from a single perspective, and promoted with an agenda.

A movie can't be objective -- it is told from the Director & DP's point of view. Camera perspective imposes the viewer's perspective. And documentary filmmakers are never experts on the subject matter. They are entertainers.