Well put, maestrowork.
Ben Stiller has been crying innocent in the media over the last few weeks over his portrayal of an actor lamenting his role as "Simple Jack." It could be the case that those people involved with the film intended to make a cutting critique of actors who take on over-the-top disabled characters in the hopes of winning an oscar. (side note: who are they parodying? 'forrest gump', 'i am sam', 'rainman'-tom hanks, sean penn, and dustin hoffman gave amazing and moving if not entirely realistic performances in these films. they weren't pathetic oscar bids. ditto for the less-well-known films with disabled characters like 'the other sister' or 'mozart and the whale'. rant completed.)
But the subtle mockery of the entertainment industry is going to be 100% lost in a movie written for teenage boys that relies on dick jokes and fart gags throughout. no one going to see this film is going to think, 'gee, what an incisive, witty critique of actors who play developmentally disabled characters! ben stiller really took the wind out of their sails!' They're going to think, 'haha, don't go full retard, that's so funny, i'm going to have to start saying that!'
I don't think that we should ban the word r*tard from our mass media, just like I don't think that we should ban the word n*gger or any other similar derogatory phrases. BUT i do think that as artists, we (the beautiful and talented flowers of absolute write, as well as the people who create our movies and television) have a duty to use these words in a way that means something about the way that we live. For instance, 'The Ringer' uses the word r*tard in a productive way that teaches something to the viewer. We all know that Huck Finn puts the n-word to use in a way that is meaningful within the context of the novel. 'South Park,' for all of its grotesqueness and mockery of pretty much everyone everywhere, puts both of those words to use in ways that are funny and entertaining and instructive, and they don't shy away from having several strong disabled characters and african-american characters.
But what is the point of using this inflammatory and hurtful language only to get a laugh? Does 'don't go full retard' really enrich the human experience in any way whatsoever? do we learn anything about our own humanity? or are we just learning the acceptability of one more hurtful playground taunt from our movie star heroes?
(I acknowledge that none of these three may be YOUR heros, but loads of people do look up to jack black, Iron Man, and Greg Focker.)