But the problem is that people unaware of the facts see it, buy it as truth, make plans and choices based on the perceptions it communicates, and frequently take action with or against others based on those perceptions. 
But the problem is that people unaware of the facts see it, buy it as truth, make plans and choices based on the perceptions it communicates, and frequently take action with or against others based on those perceptions.
… as planned.
No argument there. That's why these movies make such excellent propaganda, and their purveyors know it full well. My point is that there isn't anything you can do about it except cease to attend them, and even then you'll have to deal with the reactions of those who do. Of course it isn't fair. The author only appears to realize that after it's his own sensibilities and memory that are offended.