“Not saying they don’t but I’ve never heard it or seen it listed in their pharmacopeias.”
I’m using the past tense above because I don’t know of anywhere in the Chinese-speaking world where it’s now legal to do so. I’m no expert in traditional Chinese medicine; I’d only seen it listed in a book in English I came across on their pharmacopoeia which listed parts used as seeds and aerial parts - leaves and flowers.
“About two years ago I noticed that most of them seemed to have left.”
That’s surprising if so many of them were involved in the drug trade. Being free of illegal aliens would of course be a good thing, but surely there are other ways to be free of them? Operation Wetback didn’t need to legalize marijuana to work.
I am sure that there are. Good luck in your town, my town doesn't have a problem with illegals anymore.