Sounds like you're pretty angry, but you realize they didn't "sell to addicts" - they created them with a concentrated, coordinated strategy involving all aspects of the medical system. Letting them carry on business as usual while leaving it to public health and society at large to clean up the mess strikes me as a bizarre suggestion...
This isn't weed, which isn't physically addictive, or even alcohol, where addictiveness varies from one person to the next. Opioids are addictive across the board. The best comparison is cigarettes. And look at how many people ended up nicotine addicts when we let those chips fall (40% of American adults in the 60's and 70's).
And unlike cigarettes, opioids can make you feel really, stupendously good.
I agree strongly with legalization of many drugs. But I can't find a way to agree with legalization of the most physically addictive drugs. Those are better handled through strict regulation, ample support and, even though it's a losing battle, some measure to limit supply.
The percentage of the population addicted to heroin was roughly the same at all three points. The consequences for addicts was not. This demonstrates that banning a serious opioid produces no measurable effect other than having us spend a lot of money to create problems for addicts.
The problem with what the drug companies did here is not that they were producing dangerous substances (though they were), it is that they were getting doctors to prescribe them to be used in a way that was virtually guaranteed to create addiction on a large scale. Which is an argument for correct prescription policies, and not for banning the substances themselves.
I can't find it but https://www.youtube.com/watch?v=W8yYJ_oV6xk is from the same organization and is well worth watching.
I have no love of doctors handing out oxycodone like candy, but we're in serious danger of swinging the pendulum back the other way.
I believe we should legalize these drugs, but require their usage to occur under medical supervision, given the risk of respiratory depression. This simultaneously solves the "dirty needle" problem and helps the "city streets full of drug addicts" problem.
The only drug I support making illegal for recreational consumption is fentanyl (and others like it) - but frankly even that is probably unnecessary because the rise of fentanyl has happened _because_ of the war on drugs [1].
[1] I have no citation here. I'll note that as someone who has never tried fentanyl (besides being given it by a doctor as part of a cocktail to put me under as many people have experienced), it's said to not have much recreational value, so take that for what little it's worth. Rather, it is commonly added to other drugs like heroin and pressed alprazolam primarily because high potency drugs are easier to smuggle than low potency drugs. For example, a gram of LSD is trivial to smuggle and is equivalent to $10,000 hits of LSD, with an end retail value of $100,000 in many markets although naturally not priced that way when sold in bulk], whereas smuggling the equivalent value of weed would mean transporting on the order of 10,000 grams or more.
This only really works for recreational use, not medical use. Being observed multiple times per day could well be just as restricting as the pain, so there is still an opportunity for diversion/misuse.
There are better heroin substitutes than methadone (which is probably more addictive than heroin).
Suboxone in particular needs to be used more in the US.
1. @see just about any superfund site related bankruptcy... like: https://en.wikipedia.org/wiki/Eagle-Picher