1. Every drug can be abused. Cannabis can be prescribed and used under a doctor's supervision.
2. The medical benefits of pot are for real, no matter how many times you just say they're not.
I can see you really don't have a lot of knowledge about Cannabis. It is just another tool in the medical arsenal. Some people are allergic to other drugs or they're not effective for them, so why would you prevent people from discovering and using a new compound that IS effective for them?
Like I said before, would you prevent hospitals from using Morphine because people die on street heroin?