
It doesn't matter whether pot harms users or not--or even whether it harms friends of users or not. Speaking as someone raised by chain-smoking drunks, our society is morally obligated to either ban alcohol or allow pot.
I use neither, nor does my spouse, so I gain nothing personally from either choice.
But by choosing to make the lesser evil illegal and the greater one legal, society practices a terrible hypocrisy that fosters disrespect for the law and for society.
The argument that one is bad enough, we don't need two, is pure sophistry. Society rests on being fair--one law for everyone. When the legal drug is the one used by legislators and judges, and the banned one is the one used by "those people" the pretense of fairness goes out the window.
It's true that alcohol used in moderation is not dangerous. But that's equally true of pot (especially when it's eaten, not smoked).
If we legalize pot for adults, more people will use it than before--but most won't. It's not physically addictive, unlike alcohol. And most Americans don't want to wander around in a daze.
As for driving while stoned--I regard it the same way as I regard driving while drunk: premeditated attempted murder.
So legalize pot but treat as premeditated all crimes committed under the influence of any mind-altering substance that was voluntarily ingested.
That should make the law and order types happy. But if you don't support legalizing both or banning both you aren't serious about law and order.

