The irony of the PG-13 hate
is that it's coming from people who seem oblivious to the original's superb and subtle subtext. The violence was integral to the story and the director's stylistic approach. It served a story-telling and thematic purpose. A purpose which ironically seems to have totally evaded the overwhelming majority of 'haters' of the remake.
Too many of them seem to object to the absence of violence in that it was violence that, in their mind, made the movie what it is. This couldn't further from the truth of course, as violence without context, story and characters is like watching Hostel.
This film, for better or worse, decided to tackle a different set of issues regarding humanity. Violence was not necessary to tell its story and so adding it would have been a mistake. Given how overly sensitive censors are these days, even if they did release an R rated cut, I seriously doubt it would be that much bloodier, certainly not to the point that the original was.
I find it ironic that people who claim to love the original so much and take offence to the remake are not intelligent enough to realise what a masterpiece the original is and instead relegate it to a simple violent revenge flick.
Is it any wonder these same oblivious people hate the remake for not being violent? They seem to equate violence with being 'adult' when they couldn't be more childish in their approach to both films and their respective themes.