You keep saying supervision makes the coercion official, but you're missing what prohibition actually does. That toll booth exists today, except it's in an underground gym run by a dealer with zero oversight. Your boxer is already forced to choose between losing and injecting mystery powder. At least with a doctor he can see the dose, understand the tradeoff, and walk away with real information instead of a handshake.
And on the arms race point, yes, new drugs will always emerge. That's true of antibiotics, cancer treatments, everything in medicine. The difference is supervised use creates an actual evidence base. We learn what these compounds do through tracking and research instead of reading autopsy reports.
You're right that consent under duress isn't perfect. But we don't ban firefighting because it's dangerous, we give better gear. Let's give athletes better gear than a parking lot.
11:09 AM