Illegal or legal it is still always going to be around and policing it is very expensive. People who think a drug they are taking is causing them a health problem are less likely to seek medical advice if it means the doctor will look upon them as a criminal. As for the gateway nonsense it is utter rubbish. There is one well known gateway to people consuming dangerous substances and it's called having a social life and no government has had the guts to put everyone in solitary confinement.
