They were naturally. Opium is historically a tool of colonial oppressers. Asian opium dens were only a thing after the British Empire brought it to their communities. Gary Web famously shot himself in the head twice after exposing the CIA as the one offloading crack into the streets of the San Francisco Bay Area kick-starting the crack epidemic. Drugs like crack, opium, and other highly addictive drugs help maintain control and division among the exploited population. Pain killers and fentanyl are the new Crack Cocaine of our time. Even if they were not making a direct profit off the opium trade at the time, it did them no good to stop it. It only supported their efforts of looting and plundering.