Is it necessarily the case that it isn't? Suppose you can't afford health insurance and you have a condition for which a controlled substance would be prescribed, if you had access to the healthcare system, but you don't. If you then buy it over the internet, is the system being wronged by you or are you being wronged by the system?
The war on drugs is a scam, but pretty sure if the primary goal was to oppress indigenous people in another country the US government could’ve found a cheaper way (both fiscally and politically).
I don’t think Nixon cared about indigenous people in South America. Not because he was a great guy, just because they didn’t matter to him even slightly. He definitely cared about communist militias though.