Do you HONESTLY think Joe Kennedy would have just gone out and gotten himself a little factory job if the opportunity to bootleg wasn't available?
Hey, I have admitted that the Kennedys didn't prove my point. But the fact that many people are into selling illegal drugs because of the easy money. Take the money away and they will find something else to do. Some will still choose crime but some will not. Many gangs whose primary source of income is the sale of illegal drugs will beome much smaller.
There will always be crime, however, creating criminals by legislative act only serves to empower the government, not the people. Laws cannot free you. They can only imprison you.