If the governments of the world would fund studies looking for positive results of cannabis/hemp, there would probably be a sweetner made from hemp on the market that would be far safer than any other out there now.
My wife lost half the site in her eye due to aspartame. Doctor asked her if she had been drinking moonshine. The medical practice could not figure out where the problem came from. She almost died from drinking too many sodas laced with aspartame.
This is legal though, as is a lot of other poisons out there. Better keep the non-toxic stuff illegal.