Your analogy is completely specious. What medicinal qualities are they extolling with regards to beer? The pothead community claims wonder-drug properties for weed, but they refuse to advocate a pill with all the positive chemicals, but with the negative chemicals eliminated.
If you really want to stick with the irrelevant beer analogy, why are open container laws not your focus then? Or drunk driving laws?
Why should there be a pill? So the drug companies can profit from a weed that can grow upto 18 feet in 6-9 months? Are you serious? Come on man - think!