GB, I'm not 100% sure of the social conservative take but econ/drugs/immigration (I'll just start saying edi) doesn't seem that strong either. Sure, job security is less than it was, but unemployment has been steady the last 50-60 years and poverty has fallen a lot. Immigration can't explain it since the native US population is responsible for the majority of the increase. Drugs might be convincing, but cultural norms about drug use have changed a lot too. For instance marijuana was something deviant bohemians did in the 40s and 50s until it gained a degree of social acceptance in the 60s. To the skim readers out there, I'm not saying pot turns people into violent lunatics, rather that the "drugs causes crime" line of causation is more complicated. So I'm not seeing a whole lot of support for these explanations either.