Another example of racism from early cinema, this American Mutoscope & Biograph (AM&B) short is described in its inclusion as an extra on the "Hollywood Chinese" (2007)--a very interesting documentary, by the way--DVD two-disc set as exemplifying "early cinema's demeaning depictions of the Chinese." Indeed, it depicts Chinese launderers (as surely played by white actors) being biblically instructed by Christian evangelical women and, in turn, they share opium with them. The final supposed gag involves the Chinese men being the only ones arrested in a drug raid, as well as some roughing up by the cops, while the women visit them in jail only to bring them their laundry.
Richard Cross at Letterboxd is right that the picture seems like an early exploitation flick, but that's about the best thing one could say regarding it. Both the Christians and the Chinese are ridiculed in a dated comedic fashion. It kind of reminds me of AM&B similarly exploiting the hot topics of the day of Mormonism and polygamy in "A Trip to Salt Lake City" (1905), but here it's Chinese immigrants, the attempts to convert them, and drugs. More offensive than funny, but there it is.
Just looking through my past reviews of films from the same era, there's a lot of offending titles made by the white male filmmakers (and Alice Guy) back then. From the around the same time, there's the Edison short humorizing then-President Roosevelt's support of eugenics, "The Strenuous Life; or, Anti-Race Suicide" (1904), "The Watermelon Patch" (1905) depicting African Americans as watermelon thieves, and AM&B produced a picture the same year as this one whose title I won't repeat here that revolved around white supremacism and an eponymous idiom and pun with a racial slur.