In terms of people spending money on what they want, people spend lots of money on opioids and it ruins their lives, or kills them. Should doctors and pharmaceutical companies not be bound by any regulatory body? Should people just be allowed to OD on fentanil because they want to spend their money on it?
People who use drugs are not harming anyone with force or fraud. And if drugs were decriminalized, they'd be far cheaper, and drug addicts wouldn't have to turn to crime to pay for their drugs. The drug war is a massive failure and a huge civil rights violation.
I would also hope that, when drugs are decriminalized, the drug addict would choose a safer opiate, like simple morphine or heroin. Yes, they are very addictive, and they can cause overdoses, but if people could buy their drugs in a legal market they could actually get good dosage information and it wouldn't be cut with shit like fentanil.
I'll take the "people can spend money on what they want" dystopia before I take yours. Because the capitalism dystopia to presented can be fixed by people changing their minds and changing their spending habits. Your dystopia can't change without deaths.