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.
It's not deflection, my post is literally saying we aren't immune to propaganda.
But, also that, not being 100% doesn't really give a free pass for people to repeatedly regurgitate easily debunk-able bullshit multiple times. I don't give Vaush or Destiny or Jordan Peterson fans a pass just because some hypothetical version of myself maybe would have fallen for those hucksters too. If we follow this logic to it's maxim I think you just end up at hard determinism. We can't really judge anyone for anything, that Neo-Nazi only ended up that way cuz his mom made him oatmeal instead of eggs one breakfast and that set off a chain of events that inevitably lead to him reading too much Stonetoss.