“Among Americans who used marijuana in the past year . . .”
Legally used? Illegally used? Medicinally used?
The poll doesn’t mean anything. Right now, marijuana is illegal. When it is made legal, its use will spread.
There will even be pressure put on companies that refuse to hire on the basis of use after it is made legal:
“Mr. Moneybags, you used a mandatory drug test to determine whether my client uses marijuana, and when he tested positive for that legal substance, you rejected him as a candidate even though you believed he was qualified for the job, is that correct?”
“Mr. Moneybags: I can’t have users manning my equipment on the floor. He tested positive for cannabis, and then the retest confirmed it, so we didn’t hire him.”
“Do you test for alcohol use as well?”
“We don’t . . . (etc).”
As long as it is illegal, you can discriminate against users. Once it is legal, you have to hire the stoner until you can screen for it legally and not interview once you spot it.
Legally used? Illegally used? Medicinally used?
Yes.
The poll doesn’t mean anything.
How does that follow?
Right now, marijuana is illegal. When it is made legal, its use will spread.
Probably, just as the use of alcohol likely spread when Prohibition ended - but the latter spread didn't lead to "A nice drugged out permanently unemployed population" and there's no reason to think the former would be different.
There will even be pressure put on companies that refuse to hire on the basis of use after it is made legal:
Even supposing this is true - and you've provided no judicial precedents to support your claim - the solution is to amend the legalization bill to exclude this possibility, rather than to quash legalization.