The answer is that it depends on whom you ask. Below is a graph based on yourmorals data where participants were randomly assigned to answer whether they agreed that “XXX is immoral” about one of seven health behaviors.
As you can see, conservatives feel that ingesting all types of substances (cigarettes, alcohol, marijuana, and cocaine) are more moral issues, compared to liberals. Liberals appear to moralize driving while using a cellphone and eating unhealthy food a bit more than conservatives.
Interestingly, liberal visitors felt that distracted driving is about as immoral as using cocaine and much more immoral than smoking marijuana. Conservatives, on the other hand, felt that the use of illicit drugs (cocaine and marijuana) was more immoral than driving while using a cellphone. This is perhaps another way to show the robust moral foundations theory finding that liberals care more about issues of harm (e.g. distracted drivers might kill someone), while conservatives care more about issues of purity (e.g. taking drugs is unnatural) and authority (e.g. especially illegal drugs).
- Ravi Iyer
edit: I had a few request for the sample size. 1,538 liberals and 337 conservatives took this study for this analysis.