And here you misstate the consequences again. A big chunk of the smokers would become unemployable and the rest of us would have to pay for their food, shelter and upkeep.
We would also have to pay for their children as well.
And none of this addresses all the stealing that would occur as a result of having so many unemployed lazy bums.
Evidence? Seems to me that anyone who loves pot that much is already smoking it, making legalization a moot point.
I understand what you're asserting, but is this because they'd actually be unable to do jobs or because employers would continue drug testing and tossing out able employees who test positive for THC metabolites from their Saturday night bong hits? Drinkers would be unemployable, too, if employers took up a practice of bouncing employees not for showing up drunk to work, but for having had a few drinks on Saturday night, as would tobacco smokers if employers broadly adopted the policy some hospitals have of firing anyone who smokes tobacco even off the job.
Again, in considering this question, not all harms associated with illegal drugs are caused by the use of the drug, some are cause by the fact that is has been made illegal. One must distinguish between the harms inherent in use of the drug and the harms created by keeping it illegal.