On the topic of real gore:
Simply because something has become a normal fixture in our world, doesn't mean we should accept it. Plenty of things occur everyday, that really shouldn't. I've unfortunately had to watch someone die, and it did not make me feel any more comfortable with mortality. I don't want to live on a planet where people have become 'okay' with such things as murder or cruelty.
On the topic of fake gore [as depicted in Hollywood]:
As per horror movies, it doesn't bother me. Though extreme scenes can be kind of vexing to watch. For instance, I can sit through slasher movies [Freddy Kreuger style] and think nothing of it. In contrast, a particular scene on an episode of True Blood
When Tommy is dying. He throws up a great deal of blood and tissue.
I can't particularly handle it.
On the topic of fake gore [as depicted in hentai]:
I can honestly say this is not, and will never be a fetish for me. Sex shouldn't hurt. Sex should also.. not end your life. If it does, you're doing it wrong.