When did people lose sight of the fact that the primary purpose of film on the silver screen is entertainment? Where do authors like OP get the idea that I want to go to the movies to have politics shoved down my throat? And that there is some kind of obligation for those in charge to forgo their primary motivations of artistic expression and/or profit in the interest of some totally arbitrary target of "representati…
"And perhaps if others saw more realistic portrayals of poverty in the movies, they might be more receptive to programs that would help them instead of demeaning and punishing them."
I would love an example where 'realistic portrayals' of a given subject in movies led to changes in public policy / public perception.
If anything, I would argue that popular films, just like other art forms, are more likely to serve as a barometer of society's perception/reception of a given subject than as something that ignites the change.
Take the war in Vietnam in the 60's and 70's - I'm not sure you could make 'The Deer Hunter' in '68, or 'The Green Berets' in '78.
Or the war on drugs - movies like Trainspotting, Requiem for a Dream, or Traffic certainly showed a realistic side of drugs and addiction... and yet the war on drugs has only intensified since their popular releases.