Thought I'd point out, most of these folks claiming to be desensitized to violence/gore via their time spent browsing the web.. would certainly lose their shit when confronted with the same scene in person.
Without going into detail, military service exposed me to a fair amount of things that left me pretty numb.
If anything gets to me, it's certain.. smells associated with violence and death. Can I stomach it? No choice.. that doesn't mean I'll ever be comfortable with it.