That with legal dispensaries that are heavily regulated, underground trafficking would go away and the states would profit and the drug war would be ovah with no minors using and no additional car wrecks, etc...
I don't think your attempted analogy to queers and 'we only want you to stay out of our bedrooms' is going to cut the THC.
At no time do I remember the pro-pot forces in Washington State saying only dried flower forms would be made legal.