This is a myth, and not even a good one. Alcohol has a far stronger correlation with negative outcomes than marijuana does, and having "personally seen friends" doesn't change that.
As for the childish "less drugs, not more" solution you've come up with, weed has been illegal for almost a century. It hasn't helped yet -- what do you propose? We start killing weed dealers?
This is a myth, and not even a good one. Alcohol has a far stronger correlation with negative outcomes than marijuana does, and having "personally seen friends" doesn't change that.
As for the childish "less drugs, not more" solution you've come up with, weed has been illegal for almost a century. It hasn't helped yet -- what do you propose? We start killing weed dealers?