This discussion sort of reminds me of the debate whether the Constitution of the United States should be interpreted literally or broadly.

The law I think should be modified is the classification of cannabis as a schedule 1 drug. I wish it were treated similarly to alcohol.
This is just my opinion, I don't mean to offend anyone. Several states have already legalized it and I don't think it's total anarchy there. It is probably going well. Since it is decriminalized less spending goes toward processing would-be delinquents. Furthermore, the local government can tax it now! This doesn't really benefit users but it does incentivize other state governments to decriminalize the drug and make revenue from it. From experience, I'd say that without a doubt cannabis is the least psychoactive drug out of all the schedule 1 drugs. It would be inappropriate to call it the "safest" illegal substance, but while under the influence, one has the most control compared to other "harder" drugs. Just like any drug, whether it be over the counter or not, one should avoid operating machinery.