This is the kind of idea which comes from people who want to destroy USA and see its demoralization and social collapse.
In no way legalization of cannabis will help anyone's economy. First because the *legal* cannabis will be more expensive than the *illegal* one, so the drug dealers will still exist and they will offer their product for a cheaper price. Second that with so many harmful effects to the brain, drugs users will need health assistance in the future, increasing the demand in health sector, what may force the government to spend more money on this sector to support these people. Third that by legalizing cannabis you are endorsing the usage of another drugs like crack (for the poorest ones), cocaine, heroine and so on... Increasement of homeless population may happen too.
Legalizing cannabis doesn't solve anything, it just creates another kinds of problems for the country.
And if you are still confident about how good this idea is, ask the enemies of USA to implement such thing on their country first, so we can have that as an practical example.
Everything is funny as long as it is happening to somebody else...
Agreed, legalizing cannabis doesn't gonna help with the economy upliftment of any country. As said when it is legalized for the medical needs automatically the market value for the same will be placed high, which will surely make people to go through illegal or other means to get it cheaper.
Few states have legalized the usage of cannabis. Maybe the revenue can be stabilized with legalized cannabis. People gets affected and for cure they go in search of retreat centers.