But you see, when drugs are legal, addicts will simply be able to walk into the nearest drug store and buy the narcotic of their choice.
Of course, that still doesn't address the issue of where they'll get the money to buy the legal drugs, or how the problem of addiction itself will go away once drugs are even more easily obtained, or how addiction renders a person much less likely to be able to hold a job and be financially stable so as to buy drugs without resorting to crime, etc.
No, thanks. About half of the New Testament is composed of letters from guys like Paul who were trying to correct the 1st-century church's many problems.
I'll just as soon have authentic 21st-century Christianity. It comes with its own set of problems, of course, but they're the ones we know.