Here I agree with Soros.
Never in the course of human history has prohibition been effective. Never. It makes the scum rich (the Kennedy family made their wealth bootlegging), it promotes crime and it drives up demand. Finally it makes more concentrated forms of the contraband more profitable.
Legalize it, tax it and make it pure. The degenerates will over-dose, the allure will go away and we clean up the gene pool.
On weed?