Earlier quoted context omitted.
"The war on drugs started for a single function" Really? China's banning of Opium was because of racism? There were real concerns about drugs (and alcohol see: prohibition). That is the main reason it happened. Disenfranchising minorities and hippies was likely only a side benefit for unscrupulous people.
This may be US-centric but when people talk about The War on Drugs™ they mean specifically the US campaign against drugs and the ensuing police-state. Yes, other countries at other times have also made drugs illegal, but the war on drugs refers to the US policy specifically.
Meaning there are other reasons besides racism and thus that is likely not the primary reason like this silly "Nixon" comment I see on every post about drugs.