This is not unpopular, it’s stupid. Allow the same outcome yet also allow the underground illegal shit to continue, which is the exact circumstance that produces crime. 

If it were legal, the net outcome would be less underground illegal shit going on and less crime. We would be able to control how much people can buy, grow, etc. and criminals would have lower incentives to sell. 

Are there criminals selling alcohol illegally? Very few. Are there alcohol related crimes? Yes. Are there less alcohol related crimes because it’s legal? Yes.

Hence, stupid opinion. Respectfully.