I have been raped by a stranger on a train.
I watched Irreversible's 9 minute long rape scene and it was deeply disturbing (share similarities with my situation) and upsetting. But I could still distinguish between that film and what happened to me.
I encountered similar feelings watching Salo, Calvaire, other supposedly shocking films etc.
I watched the film, not because I am a gin-toting hipster, nor a soiled-dressing-gown-wearing priapic sexual sadist (and neither did my husband who also watched it). I watched it because I am interested in filmmaking.
I didn't like it, wouldn't watch it again, but defend the right of the filmmaker to make it.
Would you keep my friend (the only person who has watched this particular film, as a reviewer) away from your kids because he had watched it?
Would you keep your children away from fans of Lolita, or The Enchanter?
And of course it's an allegory. It is so obvious. It just about hits you over the head with it. Saying it isn't until your blue in the face is up to you. But you would be whistling in the dark.
My saying this doesn't mean I think it isn't an exceptionally nasty film, or that I wouldn't raise my eyes at someone wanting to watch this out of choice.