Actually the world is far, far less violent now than it has been at different points in the past. People like to romanticize the past, but damn they did some unreal stuff to each other....
just an example....at the battle of Gettysburg, the Confederacy lost 4 thousand men in just over two hourse of fighting at one point. People scream about the death toll in Iraq and Afghanistan....if youtube, etc... existed during Civil War, WW1, WW2, etc.... it would have made todays carnage pale by comparison.