His depiction of violence is just realism. -That's the way I see it too. But then, violence is so horrible in reality, that sensationalizing it actually has the result of making it more palatable not less. What I mean is that McCarthy's telling of the violence is so much more disturbing because it isn't glorified, vilified or sensationalized in any way. It just is... and that makes it all the more real and oddly relatable.
Slowly dying in the desert only to be awoken by a vulture picking at your rancid oozing wound is far more terrifying than any vampire or zombie.