Why not give it the same status as tobacco?
People smoke much less of it by volume.
Let any entrepreneurs grow, sell, export.
Provide revenue with reasonable licenses fees and taxes.
This would effectively destroy the black market/cartels and consequent violence.
No one is shooting anyone over cigarettes.
It was legal in all the Latin countries before the US railroaded them with the threat of no foreign aid.
The prospect of dismantling the failed DEA and other Federal Agencies is I suspect the real reason nothing is done by the powers that be.