So you just outright said that people should be free to smoke, but anyone who sells what is being smoked should be incarcerated.
How is that not a complete oxymoron?
No. You have a factually flawed bias against a thing, and you want to mob up with other people to enforce your opinions and will upon people you disagree with.
As a result, you want to imprison poor people and not accomplish what you claim to want to accomplish.
As we both agree, outlawing the sale will not prevent 100% of usage. But it will almost certainly prevent some usage.
And I agree that a black market will form and that black market will cause some societal damage.
So the question is, will the affects of the black market created by prohibition do more damage to society than the reduction in existing societal damage that we should see from prohibition?
Considering the above statistics, it may be worth the gamble.