Propaganda doesn't totally rob people of agency free will (more accurate term), if it did this site wouldn't exist. People do have the capacity to develop critical thinking, skepticism, and a basic curiosity about the world that allow them to develop some resistance to propaganda.
You can hold people accountable for failing to even attempt to do this.
Ew, they use a term like that? Makes sense. Any type of internet "-bro" will take actually useful terms and turn them into meaningless junk designed to shut down conversation.