This is a theme I have pursued over the years, being mostly conservative (with a small c, as one needs to add in Britain) and a great lover of detective stories.
Consider what happens in a detective story, even a modern one that purports to have a leftward (or “enlightened”) leaning: A crime, probably murder, is committed, possibly followed by similar crimes. The world is turned upside-down as a result. Together with the detective, we cannot rest until the perpetrators are discovered and brought to justice. The perpetrator is at the very least prevented from repeating the crime. Human life is sacrosanct. Murder is wrong, no matter how you look at it. It is the ultimate crime. It destroys nature’s balance, which can be restored only by the culprit’s discovery and his or her punishment. In a century that saw the casual elimination of millions of people, this highly moral attitude became and remained attractive to many people. This has continued into the new century, which has not started off too well.