I purchase at a legal marijuana dispensary. I don't consider the owner, or the employees, as "drug dealers". It's a legal medical marijuana dispensary. Alchohol is obviously a drug as well, but I don't think of a liquor store owner as a drug dealer. Our convenience stores sell tobacco, another drug. Yet, I don't view owners of convenience stores, or the clerk behind the counter, as a drug dealer. I usually reserve that term to illegal sales of drugs like pot.
For me, the term "drug dealer" is something I've always associated with the sale of illegal drugs, like pot, cocaine, meth, etc. It refers to the sale of drugs in an illegal setting. You may feel that the term should apply to the employees of a legal medicinal dispensary, or a clerk selling a pack of cigarettes, but for most of us, the term is associated, not with storefronts, but illegal street sales of illegal substances.
So, if you're fighting to have a liquor store owner labeled a drug dealer, well, I think that's just you enjoying the act of arguing.