My sentiment, too. However there are some tweaks and extensions to make to your proposal:
- Legalise all 'recreational drugs' but tax them according to the cost to society (this must include nicotine, alcohol and even NOx, too.) The tax levied should compensate for medical costs (such as for OD treatment), damages, cost of policing/monitoring the chains of production, quality control, education, other prevention measures etc.
- Make production of drugs something you have to get a license for. Preferably, the pharmaceutical industry is offered the chance to produce recreational drugs but only if they produce enough new types of medical drugs each year or risk losing their 'right to produce'. In the startup phase, make hunting drug shipments a priority with bonusses for police/border patrol that intercept drugs and then refine the drugs and sell them as government. Competing with drug cartels using their own drugs will quickly dissuade them from trying to smuggling drugs in.
- If you commit a crime or cause an accident while under the influence of anything that impairs cognition, reaction time etc., you are treated as fully culpable with aggravated punishment.
- If you want to buy drugs, you have to pass a test on the effects and risks of the drug. This will give you a right to buy (for instance using a creditcard like pass with your fingerprint) a limited amount of that drug per time period (to limit redistribution and use, yes this will cause an issue for heavy drinkers and use in social settings such as bars. That is fine with me.)
All in all, the bizarre part of all of this is (and has been for as long as drugs have been illegal) is that conservatives want /less/ control by the government but want to deny a large part of the population their right to make decisions about their own life. Yearly, lots of people die doing 'recreational things' like driving motor cycles, jumping parachute, climbing (or even just walking in the) mountains, skiing, diving, etc. etc. etc. and a proposal to get those banned or heavily regulated wouldn't even pass the first discussion. So why are 'drugs' different? There is no real reason. It is, as you say, mostly driven by ulterior motives that don't relate to the substances themselves at all. Oh well, a person can dream.