While I have found few people to think this acceptable, I believe it better than the wanton passing of social laws to appease a voter base in order to keep a job. (How many people did DOMA[0] practically harm in order to appease the metaphysical sensitivities of a majority of voters)
Laws should be to prevent[dissuade] harm __to others__. If someone wants to recklessly use drugs, then we have laws that punish them for the harm they did to others, with an added under-the-influence charge. There is no reason to punish a consenting adult doing no harm to another, only possibly themself. The problem with this, is politicians don't get re-elected for creating education and other services that would help those addicted/using it to escape their life or those with trauma/mental instability inflicting trauma on others. But using "moral" arguments to rile up majority population voting bases is low hanging fruit; which the system rewards one for going after. Laws that are publicly passed are usually done by exploiting the emotions of group-type majorities. instead of using funds on analysts to find the current emotional trigger to poke, use it to find the best ways to help those that are a higher risk to cause harm towards others (ie, addicts, mental health - including those with trauma that are not as easy to treat with medication and basic security needs). And honestly, I find it unethical to exploit a persons personal faith for job security.
At some point people have to take responsibility for themselves, their actions, and stay out of your neighbor's business until your neighbor begins harming other humans (whether in their house or outside of it). Laws don't prevent harm to others, they establish (or should only establish) societal time-outs(rehabilitation) and damage/cost/etc retribution/repayment (the word I want to use escapes me in describing this exactly), the same way police are law _enforcement_ officers, not crime prevention psychics.
TL;DR: "The right to swing my arms in any direction ends where your nose begins." (This also encompasses the non-physical assault or harm - stealing etc)