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.
Again, I very much recommend reading up on Classical Conditioning.
me, a beast: waking up
my scientist: let’s put that beast in a situation
me: yes honey