Technology

Curiously, in our society, killing is less of a taboo than sex, especially in fiction.

Since the aughts, I feel it is a disservice we do to censor out the horror of warfare in games like Call of Duty or Medal of Honor. I haven't seen what they did with Six Days In Fallujah (by a vet of the Iraq War who experienced Fallujah and wanted to share his experience) but we'd have more respect for the gravity of war if the tragedy and immediacy of combat was properly expressed. In the Arma series, it's very easy to die, but it uses a similar engine used for training purposes.

It's our Christian values (more specifically, our Paulinian values -- he thought Christians should not have sex if they can abstain entirely¹ -- which has turned into taboos against sex without strict licenses, that has made our society super-prudish.

1. Paul actually also prohibited having additional children, the end being neigh and all. Later biblical interpreters would have to deal with the world's failure to end, and Christ's failure to return in their lifetimes.